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Finding the Fourth Proportional to 373,693.38, 515,431.18 and 249,451.80

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Solution

The fourth proportional to 373,693.38, 515,431.18 and 249,451.80 is: 344,066.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,693.38 : 515,431.18 = 249,451.80 : x
  2. Step 2: Convert to fraction form
    373,693.38/515,431.18 = 249,451.80/x
  3. Step 3: Cross multiply
    373,693.38x = 515,431.18 × 249,451.80
  4. Step 4: Simplify right side
    373,693.38x = 128,575,235,627.12
  5. Step 5: Solve for x
    x = 128,575,235,627.12/373,693.38
  6. Step 6: Final answer
    x = 344,066.13

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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.