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Finding the Fourth Proportional to 616,276.80, 924,415.20 and 404,769.60

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Solution

The fourth proportional to 616,276.80, 924,415.20 and 404,769.60 is: 607,154.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,276.80 : 924,415.20 = 404,769.60 : x
  2. Step 2: Convert to fraction form
    616,276.80/924,415.20 = 404,769.60/x
  3. Step 3: Cross multiply
    616,276.80x = 924,415.20 × 404,769.60
  4. Step 4: Simplify right side
    616,276.80x = 374,175,170,737.92
  5. Step 5: Solve for x
    x = 374,175,170,737.92/616,276.80
  6. Step 6: Final answer
    x = 607,154.40

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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.