Home / 717,726.47-990,480.36-441,979.94

Finding the Fourth Proportional to 717,726.47, 990,480.36 and 441,979.94

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Solution

The fourth proportional to 717,726.47, 990,480.36 and 441,979.94 is: 609,943.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,726.47 : 990,480.36 = 441,979.94 : x
  2. Step 2: Convert to fraction form
    717,726.47/990,480.36 = 441,979.94/x
  3. Step 3: Cross multiply
    717,726.47x = 990,480.36 × 441,979.94
  4. Step 4: Simplify right side
    717,726.47x = 437,772,442,921.68
  5. Step 5: Solve for x
    x = 437,772,442,921.68/717,726.47
  6. Step 6: Final answer
    x = 609,943.29

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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.