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Finding the Fourth Proportional to 296,569.51, 444,866.56 and 86,207.45

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Solution

The fourth proportional to 296,569.51, 444,866.56 and 86,207.45 is: 129,314.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,569.51 : 444,866.56 = 86,207.45 : x
  2. Step 2: Convert to fraction form
    296,569.51/444,866.56 = 86,207.45/x
  3. Step 3: Cross multiply
    296,569.51x = 444,866.56 × 86,207.45
  4. Step 4: Simplify right side
    296,569.51x = 38,350,809,288.02
  5. Step 5: Solve for x
    x = 38,350,809,288.02/296,569.51
  6. Step 6: Final answer
    x = 129,314.74

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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.