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Finding the Fourth Proportional to 607,329.60, 910,411.20 and 472,318.80

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Solution

The fourth proportional to 607,329.60, 910,411.20 and 472,318.80 is: 708,024.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,329.60 : 910,411.20 = 472,318.80 : x
  2. Step 2: Convert to fraction form
    607,329.60/910,411.20 = 472,318.80/x
  3. Step 3: Cross multiply
    607,329.60x = 910,411.20 × 472,318.80
  4. Step 4: Simplify right side
    607,329.60x = 430,004,325,490.56
  5. Step 5: Solve for x
    x = 430,004,325,490.56/607,329.60
  6. Step 6: Final answer
    x = 708,024.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.