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Finding the Fourth Proportional to 472,612.70, 708,919.05 and 472,612.70

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Solution

The fourth proportional to 472,612.70, 708,919.05 and 472,612.70 is: 708,919.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,612.70 : 708,919.05 = 472,612.70 : x
  2. Step 2: Convert to fraction form
    472,612.70/708,919.05 = 472,612.70/x
  3. Step 3: Cross multiply
    472,612.70x = 708,919.05 × 472,612.70
  4. Step 4: Simplify right side
    472,612.70x = 335,044,146,301.94
  5. Step 5: Solve for x
    x = 335,044,146,301.94/472,612.70
  6. Step 6: Final answer
    x = 708,919.05

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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.