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Finding the Fourth Proportional to 534,617.40, 802,703.70 and 402,425.40

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Solution

The fourth proportional to 534,617.40, 802,703.70 and 402,425.40 is: 604,223.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,617.40 : 802,703.70 = 402,425.40 : x
  2. Step 2: Convert to fraction form
    534,617.40/802,703.70 = 402,425.40/x
  3. Step 3: Cross multiply
    534,617.40x = 802,703.70 × 402,425.40
  4. Step 4: Simplify right side
    534,617.40x = 323,028,357,553.98
  5. Step 5: Solve for x
    x = 323,028,357,553.98/534,617.40
  6. Step 6: Final answer
    x = 604,223.43

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1.5x scale

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.