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Finding the Fourth Proportional to 496,875.60, 745,313.40 and 439,794.90

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Solution

The fourth proportional to 496,875.60, 745,313.40 and 439,794.90 is: 659,692.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,875.60 : 745,313.40 = 439,794.90 : x
  2. Step 2: Convert to fraction form
    496,875.60/745,313.40 = 439,794.90/x
  3. Step 3: Cross multiply
    496,875.60x = 745,313.40 × 439,794.90
  4. Step 4: Simplify right side
    496,875.60x = 327,785,032,221.66
  5. Step 5: Solve for x
    x = 327,785,032,221.66/496,875.60
  6. Step 6: Final answer
    x = 659,692.35

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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.