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Finding the Fourth Proportional to 616,139.60, 924,209.40 and 172,907.60

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Solution

The fourth proportional to 616,139.60, 924,209.40 and 172,907.60 is: 259,361.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,139.60 : 924,209.40 = 172,907.60 : x
  2. Step 2: Convert to fraction form
    616,139.60/924,209.40 = 172,907.60/x
  3. Step 3: Cross multiply
    616,139.60x = 924,209.40 × 172,907.60
  4. Step 4: Simplify right side
    616,139.60x = 159,802,829,251.44
  5. Step 5: Solve for x
    x = 159,802,829,251.44/616,139.60
  6. Step 6: Final answer
    x = 259,361.40

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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.