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Finding the Fourth Proportional to 616,131.38, 850,230.95 and 344,145.13

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Solution

The fourth proportional to 616,131.38, 850,230.95 and 344,145.13 is: 474,903.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,131.38 : 850,230.95 = 344,145.13 : x
  2. Step 2: Convert to fraction form
    616,131.38/850,230.95 = 344,145.13/x
  3. Step 3: Cross multiply
    616,131.38x = 850,230.95 × 344,145.13
  4. Step 4: Simplify right side
    616,131.38x = 292,602,836,971.47
  5. Step 5: Solve for x
    x = 292,602,836,971.47/616,131.38
  6. Step 6: Final answer
    x = 474,903.32

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Double scale
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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.