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Finding the Fourth Proportional to 704,870.16, 972,722.16 and 403,064.16

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Solution

The fourth proportional to 704,870.16, 972,722.16 and 403,064.16 is: 556,229.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,870.16 : 972,722.16 = 403,064.16 : x
  2. Step 2: Convert to fraction form
    704,870.16/972,722.16 = 403,064.16/x
  3. Step 3: Cross multiply
    704,870.16x = 972,722.16 × 403,064.16
  4. Step 4: Simplify right side
    704,870.16x = 392,069,440,333.79
  5. Step 5: Solve for x
    x = 392,069,440,333.79/704,870.16
  6. Step 6: Final answer
    x = 556,229.31

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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.