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Finding the Fourth Proportional to 472,248.20, 708,372.30 and 313,963.40

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Solution

The fourth proportional to 472,248.20, 708,372.30 and 313,963.40 is: 470,945.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,248.20 : 708,372.30 = 313,963.40 : x
  2. Step 2: Convert to fraction form
    472,248.20/708,372.30 = 313,963.40/x
  3. Step 3: Cross multiply
    472,248.20x = 708,372.30 × 313,963.40
  4. Step 4: Simplify right side
    472,248.20x = 222,402,975,773.82
  5. Step 5: Solve for x
    x = 222,402,975,773.82/472,248.20
  6. Step 6: Final answer
    x = 470,945.10

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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.