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Finding the Fourth Proportional to 624,336.20, 934,430.70 and 437,712.20

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Solution

The fourth proportional to 624,336.20, 934,430.70 and 437,712.20 is: 655,114.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,336.20 : 934,430.70 = 437,712.20 : x
  2. Step 2: Convert to fraction form
    624,336.20/934,430.70 = 437,712.20/x
  3. Step 3: Cross multiply
    624,336.20x = 934,430.70 × 437,712.20
  4. Step 4: Simplify right side
    624,336.20x = 409,011,717,444.54
  5. Step 5: Solve for x
    x = 409,011,717,444.54/624,336.20
  6. Step 6: Final answer
    x = 655,114.53

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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.