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Finding the Fourth Proportional to 366,920.70, 550,381.05 and 314,432.70

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Solution

The fourth proportional to 366,920.70, 550,381.05 and 314,432.70 is: 471,649.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,920.70 : 550,381.05 = 314,432.70 : x
  2. Step 2: Convert to fraction form
    366,920.70/550,381.05 = 314,432.70/x
  3. Step 3: Cross multiply
    366,920.70x = 550,381.05 × 314,432.70
  4. Step 4: Simplify right side
    366,920.70x = 173,057,799,580.34
  5. Step 5: Solve for x
    x = 173,057,799,580.34/366,920.70
  6. Step 6: Final answer
    x = 471,649.05

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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.