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Finding the Fourth Proportional to 416,691.54, 575,128.65 and 235,508.55

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Solution

The fourth proportional to 416,691.54, 575,128.65 and 235,508.55 is: 325,055.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,691.54 : 575,128.65 = 235,508.55 : x
  2. Step 2: Convert to fraction form
    416,691.54/575,128.65 = 235,508.55/x
  3. Step 3: Cross multiply
    416,691.54x = 575,128.65 × 235,508.55
  4. Step 4: Simplify right side
    416,691.54x = 135,447,713,151.38
  5. Step 5: Solve for x
    x = 135,447,713,151.38/416,691.54
  6. Step 6: Final answer
    x = 325,055.11

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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.