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Finding the Fourth Proportional to 458,844.82, 688,267.23 and 178,427.68

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Solution

The fourth proportional to 458,844.82, 688,267.23 and 178,427.68 is: 267,641.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,844.82 : 688,267.23 = 178,427.68 : x
  2. Step 2: Convert to fraction form
    458,844.82/688,267.23 = 178,427.68/x
  3. Step 3: Cross multiply
    458,844.82x = 688,267.23 × 178,427.68
  4. Step 4: Simplify right side
    458,844.82x = 122,805,925,068.93
  5. Step 5: Solve for x
    x = 122,805,925,068.93/458,844.82
  6. Step 6: Final answer
    x = 267,641.52

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.