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Finding the Fourth Proportional to 373,705.57, 515,483.22 and 266,310.10

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Solution

The fourth proportional to 373,705.57, 515,483.22 and 266,310.10 is: 367,343.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,705.57 : 515,483.22 = 266,310.10 : x
  2. Step 2: Convert to fraction form
    373,705.57/515,483.22 = 266,310.10/x
  3. Step 3: Cross multiply
    373,705.57x = 515,483.22 × 266,310.10
  4. Step 4: Simplify right side
    373,705.57x = 137,278,387,866.52
  5. Step 5: Solve for x
    x = 137,278,387,866.52/373,705.57
  6. Step 6: Final answer
    x = 367,343.70

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1.5x scale

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.