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Finding the Fourth Proportional to 564,980.40, 847,470.60 and 191,003.40

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Solution

The fourth proportional to 564,980.40, 847,470.60 and 191,003.40 is: 286,505.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,980.40 : 847,470.60 = 191,003.40 : x
  2. Step 2: Convert to fraction form
    564,980.40/847,470.60 = 191,003.40/x
  3. Step 3: Cross multiply
    564,980.40x = 847,470.60 × 191,003.40
  4. Step 4: Simplify right side
    564,980.40x = 161,869,766,000.04
  5. Step 5: Solve for x
    x = 161,869,766,000.04/564,980.40
  6. Step 6: Final answer
    x = 286,505.10

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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.