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Finding the Fourth Proportional to 584,428.80, 876,643.20 and 332,486.40

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Solution

The fourth proportional to 584,428.80, 876,643.20 and 332,486.40 is: 498,729.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,428.80 : 876,643.20 = 332,486.40 : x
  2. Step 2: Convert to fraction form
    584,428.80/876,643.20 = 332,486.40/x
  3. Step 3: Cross multiply
    584,428.80x = 876,643.20 × 332,486.40
  4. Step 4: Simplify right side
    584,428.80x = 291,471,941,652.48
  5. Step 5: Solve for x
    x = 291,471,941,652.48/584,428.80
  6. Step 6: Final answer
    x = 498,729.60

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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.