Home / 745,042.77-1,028,181-527,640.39

Finding the Fourth Proportional to 745,042.77, 1,028,181 and 527,640.39

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Solution

The fourth proportional to 745,042.77, 1,028,181 and 527,640.39 is: 728,159.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,042.77 : 1,028,181 = 527,640.39 : x
  2. Step 2: Convert to fraction form
    745,042.77/1,028,181 = 527,640.39/x
  3. Step 3: Cross multiply
    745,042.77x = 1,028,181 × 527,640.39
  4. Step 4: Simplify right side
    745,042.77x = 542,509,823,830.59
  5. Step 5: Solve for x
    x = 542,509,823,830.59/745,042.77
  6. Step 6: Final answer
    x = 728,159.30

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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.