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Finding the Fourth Proportional to 624,307.20, 934,387.20 and 437,683.20

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Solution

The fourth proportional to 624,307.20, 934,387.20 and 437,683.20 is: 655,071.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,307.20 : 934,387.20 = 437,683.20 : x
  2. Step 2: Convert to fraction form
    624,307.20/934,387.20 = 437,683.20/x
  3. Step 3: Cross multiply
    624,307.20x = 934,387.20 × 437,683.20
  4. Step 4: Simplify right side
    624,307.20x = 408,965,579,735.04
  5. Step 5: Solve for x
    x = 408,965,579,735.04/624,307.20
  6. Step 6: Final answer
    x = 655,071.06

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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.