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Finding the Fourth Proportional to 474,454.60, 711,681.90 and 453,977.80

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Solution

The fourth proportional to 474,454.60, 711,681.90 and 453,977.80 is: 680,966.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,454.60 : 711,681.90 = 453,977.80 : x
  2. Step 2: Convert to fraction form
    474,454.60/711,681.90 = 453,977.80/x
  3. Step 3: Cross multiply
    474,454.60x = 711,681.90 × 453,977.80
  4. Step 4: Simplify right side
    474,454.60x = 323,087,783,261.82
  5. Step 5: Solve for x
    x = 323,087,783,261.82/474,454.60
  6. Step 6: Final answer
    x = 680,966.70

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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.