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Finding the Fourth Proportional to 460,642.88, 635,396.28 and 317,153.72

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Solution

The fourth proportional to 460,642.88, 635,396.28 and 317,153.72 is: 437,471.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,642.88 : 635,396.28 = 317,153.72 : x
  2. Step 2: Convert to fraction form
    460,642.88/635,396.28 = 317,153.72/x
  3. Step 3: Cross multiply
    460,642.88x = 635,396.28 × 317,153.72
  4. Step 4: Simplify right side
    460,642.88x = 201,518,293,876.16
  5. Step 5: Solve for x
    x = 201,518,293,876.16/460,642.88
  6. Step 6: Final answer
    x = 437,471.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.