Home / 935,809.18-1,291,420.55-506,089.30

Finding the Fourth Proportional to 935,809.18, 1,291,420.55 and 506,089.30

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Solution

The fourth proportional to 935,809.18, 1,291,420.55 and 506,089.30 is: 698,405.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,809.18 : 1,291,420.55 = 506,089.30 : x
  2. Step 2: Convert to fraction form
    935,809.18/1,291,420.55 = 506,089.30/x
  3. Step 3: Cross multiply
    935,809.18x = 1,291,420.55 × 506,089.30
  4. Step 4: Simplify right side
    935,809.18x = 653,574,119,624.67
  5. Step 5: Solve for x
    x = 653,574,119,624.67/935,809.18
  6. Step 6: Final answer
    x = 698,405.33

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Double scale
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1.5x scale

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.