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Finding the Fourth Proportional to 472,945.20, 709,417.80 and 466,724.40

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Solution

The fourth proportional to 472,945.20, 709,417.80 and 466,724.40 is: 700,086.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,945.20 : 709,417.80 = 466,724.40 : x
  2. Step 2: Convert to fraction form
    472,945.20/709,417.80 = 466,724.40/x
  3. Step 3: Cross multiply
    472,945.20x = 709,417.80 × 466,724.40
  4. Step 4: Simplify right side
    472,945.20x = 331,102,597,054.32
  5. Step 5: Solve for x
    x = 331,102,597,054.32/472,945.20
  6. Step 6: Final answer
    x = 700,086.60

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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.