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Finding the Fourth Proportional to 666,111.60, 999,167.40 and 453,535.20

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Solution

The fourth proportional to 666,111.60, 999,167.40 and 453,535.20 is: 680,302.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,111.60 : 999,167.40 = 453,535.20 : x
  2. Step 2: Convert to fraction form
    666,111.60/999,167.40 = 453,535.20/x
  3. Step 3: Cross multiply
    666,111.60x = 999,167.40 × 453,535.20
  4. Step 4: Simplify right side
    666,111.60x = 453,157,586,592.48
  5. Step 5: Solve for x
    x = 453,157,586,592.48/666,111.60
  6. Step 6: Final answer
    x = 680,302.80

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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.