Home / 691,280,973,956.46-953,947,034,065.96-382,644,983,842.20

Finding the Fourth Proportional to 691,280,973,956.46, 953,947,034,065.96 and 382,644,983,842.20

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Solution

The fourth proportional to 691,280,973,956.46, 953,947,034,065.96 and 382,644,983,842.20 is: 528,038,614,092.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,280,973,956.46 : 953,947,034,065.96 = 382,644,983,842.20 : x
  2. Step 2: Convert to fraction form
    691,280,973,956.46/953,947,034,065.96 = 382,644,983,842.20/x
  3. Step 3: Cross multiply
    691,280,973,956.46x = 953,947,034,065.96 × 382,644,983,842.20
  4. Step 4: Simplify right side
    691,280,973,956.46x = 365,023,047,436,483,893,919,744
  5. Step 5: Solve for x
    x = 365,023,047,436,483,893,919,744/691,280,973,956.46
  6. Step 6: Final answer
    x = 528,038,614,092.50

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.