Home / 572,535.40-858,803.10-440,084.20

Finding the Fourth Proportional to 572,535.40, 858,803.10 and 440,084.20

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Solution

The fourth proportional to 572,535.40, 858,803.10 and 440,084.20 is: 660,126.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,535.40 : 858,803.10 = 440,084.20 : x
  2. Step 2: Convert to fraction form
    572,535.40/858,803.10 = 440,084.20/x
  3. Step 3: Cross multiply
    572,535.40x = 858,803.10 × 440,084.20
  4. Step 4: Simplify right side
    572,535.40x = 377,945,675,221.02
  5. Step 5: Solve for x
    x = 377,945,675,221.02/572,535.40
  6. Step 6: Final answer
    x = 660,126.30

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Half scale
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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.