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Finding the Fourth Proportional to 651,666.80, 977,500.20 and 371,730.80

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Solution

The fourth proportional to 651,666.80, 977,500.20 and 371,730.80 is: 557,596.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,666.80 : 977,500.20 = 371,730.80 : x
  2. Step 2: Convert to fraction form
    651,666.80/977,500.20 = 371,730.80/x
  3. Step 3: Cross multiply
    651,666.80x = 977,500.20 × 371,730.80
  4. Step 4: Simplify right side
    651,666.80x = 363,366,931,346.16
  5. Step 5: Solve for x
    x = 363,366,931,346.16/651,666.80
  6. Step 6: Final answer
    x = 557,596.20

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Double scale
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Similar ratio
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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.