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Finding the Fourth Proportional to 604,593.20, 907,764.60 and 455,877.20

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Solution

The fourth proportional to 604,593.20, 907,764.60 and 455,877.20 is: 684,475.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,593.20 : 907,764.60 = 455,877.20 : x
  2. Step 2: Convert to fraction form
    604,593.20/907,764.60 = 455,877.20/x
  3. Step 3: Cross multiply
    604,593.20x = 907,764.60 × 455,877.20
  4. Step 4: Simplify right side
    604,593.20x = 413,829,184,107.12
  5. Step 5: Solve for x
    x = 413,829,184,107.12/604,593.20
  6. Step 6: Final answer
    x = 684,475.42

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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.