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Finding the Fourth Proportional to 508,073.48, 701,338.65 and 381,118.40

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Solution

The fourth proportional to 508,073.48, 701,338.65 and 381,118.40 is: 526,091.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,073.48 : 701,338.65 = 381,118.40 : x
  2. Step 2: Convert to fraction form
    508,073.48/701,338.65 = 381,118.40/x
  3. Step 3: Cross multiply
    508,073.48x = 701,338.65 × 381,118.40
  4. Step 4: Simplify right side
    508,073.48x = 267,293,063,984.08
  5. Step 5: Solve for x
    x = 267,293,063,984.08/508,073.48
  6. Step 6: Final answer
    x = 526,091.35

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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.