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Finding the Fourth Proportional to 484,915.92, 668,531.64 and 339,526.16

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Solution

The fourth proportional to 484,915.92, 668,531.64 and 339,526.16 is: 468,089.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,915.92 : 668,531.64 = 339,526.16 : x
  2. Step 2: Convert to fraction form
    484,915.92/668,531.64 = 339,526.16/x
  3. Step 3: Cross multiply
    484,915.92x = 668,531.64 × 339,526.16
  4. Step 4: Simplify right side
    484,915.92x = 226,983,980,567.70
  5. Step 5: Solve for x
    x = 226,983,980,567.70/484,915.92
  6. Step 6: Final answer
    x = 468,089.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.