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Finding the Fourth Proportional to 472,410.30, 708,615.45 and 446,822.40

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Solution

The fourth proportional to 472,410.30, 708,615.45 and 446,822.40 is: 670,233.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,410.30 : 708,615.45 = 446,822.40 : x
  2. Step 2: Convert to fraction form
    472,410.30/708,615.45 = 446,822.40/x
  3. Step 3: Cross multiply
    472,410.30x = 708,615.45 × 446,822.40
  4. Step 4: Simplify right side
    472,410.30x = 316,625,256,046.08
  5. Step 5: Solve for x
    x = 316,625,256,046.08/472,410.30
  6. Step 6: Final answer
    x = 670,233.60

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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.