Home / 582,145.20-873,217.80-440,427.60

Finding the Fourth Proportional to 582,145.20, 873,217.80 and 440,427.60

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Solution

The fourth proportional to 582,145.20, 873,217.80 and 440,427.60 is: 660,641.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,145.20 : 873,217.80 = 440,427.60 : x
  2. Step 2: Convert to fraction form
    582,145.20/873,217.80 = 440,427.60/x
  3. Step 3: Cross multiply
    582,145.20x = 873,217.80 × 440,427.60
  4. Step 4: Simplify right side
    582,145.20x = 384,589,219,931.28
  5. Step 5: Solve for x
    x = 384,589,219,931.28/582,145.20
  6. Step 6: Final answer
    x = 660,641.40

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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.