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Finding the Fourth Proportional to 432,461.53, 648,690.76 and 116,918.38

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Solution

The fourth proportional to 432,461.53, 648,690.76 and 116,918.38 is: 175,377.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,461.53 : 648,690.76 = 116,918.38 : x
  2. Step 2: Convert to fraction form
    432,461.53/648,690.76 = 116,918.38/x
  3. Step 3: Cross multiply
    432,461.53x = 648,690.76 × 116,918.38
  4. Step 4: Simplify right side
    432,461.53x = 75,843,868,952.12
  5. Step 5: Solve for x
    x = 75,843,868,952.12/432,461.53
  6. Step 6: Final answer
    x = 175,377.15

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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.