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Finding the Fourth Proportional to 604,429.40, 907,300.20 and 471,897.20

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Solution

The fourth proportional to 604,429.40, 907,300.20 and 471,897.20 is: 708,358.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,429.40 : 907,300.20 = 471,897.20 : x
  2. Step 2: Convert to fraction form
    604,429.40/907,300.20 = 471,897.20/x
  3. Step 3: Cross multiply
    604,429.40x = 907,300.20 × 471,897.20
  4. Step 4: Simplify right side
    604,429.40x = 428,152,423,939.44
  5. Step 5: Solve for x
    x = 428,152,423,939.44/604,429.40
  6. Step 6: Final answer
    x = 708,358.04

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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.