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Finding the Fourth Proportional to 576,026.40, 864,039.60 and 292,591.20

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Solution

The fourth proportional to 576,026.40, 864,039.60 and 292,591.20 is: 438,886.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,026.40 : 864,039.60 = 292,591.20 : x
  2. Step 2: Convert to fraction form
    576,026.40/864,039.60 = 292,591.20/x
  3. Step 3: Cross multiply
    576,026.40x = 864,039.60 × 292,591.20
  4. Step 4: Simplify right side
    576,026.40x = 252,810,383,411.52
  5. Step 5: Solve for x
    x = 252,810,383,411.52/576,026.40
  6. Step 6: Final answer
    x = 438,886.80

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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.