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Finding the Fourth Proportional to 604,513.40, 907,426.20 and 471,981.20

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Solution

The fourth proportional to 604,513.40, 907,426.20 and 471,981.20 is: 708,484.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,513.40 : 907,426.20 = 471,981.20 : x
  2. Step 2: Convert to fraction form
    604,513.40/907,426.20 = 471,981.20/x
  3. Step 3: Cross multiply
    604,513.40x = 907,426.20 × 471,981.20
  4. Step 4: Simplify right side
    604,513.40x = 428,288,106,787.44
  5. Step 5: Solve for x
    x = 428,288,106,787.44/604,513.40
  6. Step 6: Final answer
    x = 708,484.06

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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.