Home / 691,867.04-954,774.94-390,058.88

Finding the Fourth Proportional to 691,867.04, 954,774.94 and 390,058.88

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Solution

The fourth proportional to 691,867.04, 954,774.94 and 390,058.88 is: 538,280.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,867.04 : 954,774.94 = 390,058.88 : x
  2. Step 2: Convert to fraction form
    691,867.04/954,774.94 = 390,058.88/x
  3. Step 3: Cross multiply
    691,867.04x = 954,774.94 × 390,058.88
  4. Step 4: Simplify right side
    691,867.04x = 372,418,443,748.47
  5. Step 5: Solve for x
    x = 372,418,443,748.47/691,867.04
  6. Step 6: Final answer
    x = 538,280.37

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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.