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Finding the Fourth Proportional to 576,557.60, 864,836.40 and 550,313.60

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Solution

The fourth proportional to 576,557.60, 864,836.40 and 550,313.60 is: 825,470.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,557.60 : 864,836.40 = 550,313.60 : x
  2. Step 2: Convert to fraction form
    576,557.60/864,836.40 = 550,313.60/x
  3. Step 3: Cross multiply
    576,557.60x = 864,836.40 × 550,313.60
  4. Step 4: Simplify right side
    576,557.60x = 475,931,232,695.04
  5. Step 5: Solve for x
    x = 475,931,232,695.04/576,557.60
  6. Step 6: Final answer
    x = 825,470.40

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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.