Home / 717,871.40-1,076,807.10-451,932.20

Finding the Fourth Proportional to 717,871.40, 1,076,807.10 and 451,932.20

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Solution

The fourth proportional to 717,871.40, 1,076,807.10 and 451,932.20 is: 677,898.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,871.40 : 1,076,807.10 = 451,932.20 : x
  2. Step 2: Convert to fraction form
    717,871.40/1,076,807.10 = 451,932.20/x
  3. Step 3: Cross multiply
    717,871.40x = 1,076,807.10 × 451,932.20
  4. Step 4: Simplify right side
    717,871.40x = 486,643,801,678.62
  5. Step 5: Solve for x
    x = 486,643,801,678.62/717,871.40
  6. Step 6: Final answer
    x = 677,898.30

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Double scale
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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.