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Finding the Fourth Proportional to 309,758.31, 464,686.07 and 132,266.25

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Solution

The fourth proportional to 309,758.31, 464,686.07 and 132,266.25 is: 198,420.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,758.31 : 464,686.07 = 132,266.25 : x
  2. Step 2: Convert to fraction form
    309,758.31/464,686.07 = 132,266.25/x
  3. Step 3: Cross multiply
    309,758.31x = 464,686.07 × 132,266.25
  4. Step 4: Simplify right side
    309,758.31x = 61,462,283,244.81
  5. Step 5: Solve for x
    x = 61,462,283,244.81/309,758.31
  6. Step 6: Final answer
    x = 198,420.13

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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.