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Finding the Fourth Proportional to 417,484.85, 626,252.56 and 117,987.84

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Solution

The fourth proportional to 417,484.85, 626,252.56 and 117,987.84 is: 176,988.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,484.85 : 626,252.56 = 117,987.84 : x
  2. Step 2: Convert to fraction form
    417,484.85/626,252.56 = 117,987.84/x
  3. Step 3: Cross multiply
    417,484.85x = 626,252.56 × 117,987.84
  4. Step 4: Simplify right side
    417,484.85x = 73,890,186,553.90
  5. Step 5: Solve for x
    x = 73,890,186,553.90/417,484.85
  6. Step 6: Final answer
    x = 176,988.91

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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.