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Finding the Fourth Proportional to 704,871.16, 972,723.54 and 403,065.16

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Solution

The fourth proportional to 704,871.16, 972,723.54 and 403,065.16 is: 556,230.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,871.16 : 972,723.54 = 403,065.16 : x
  2. Step 2: Convert to fraction form
    704,871.16/972,723.54 = 403,065.16/x
  3. Step 3: Cross multiply
    704,871.16x = 972,723.54 × 403,065.16
  4. Step 4: Simplify right side
    704,871.16x = 392,070,969,285.87
  5. Step 5: Solve for x
    x = 392,070,969,285.87/704,871.16
  6. Step 6: Final answer
    x = 556,230.69

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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.