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Finding the Fourth Proportional to 666,462.60, 999,693.90 and 453,886.20

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Solution

The fourth proportional to 666,462.60, 999,693.90 and 453,886.20 is: 680,829.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,462.60 : 999,693.90 = 453,886.20 : x
  2. Step 2: Convert to fraction form
    666,462.60/999,693.90 = 453,886.20/x
  3. Step 3: Cross multiply
    666,462.60x = 999,693.90 × 453,886.20
  4. Step 4: Simplify right side
    666,462.60x = 453,747,265,434.18
  5. Step 5: Solve for x
    x = 453,747,265,434.18/666,462.60
  6. Step 6: Final answer
    x = 680,829.30

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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.