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Finding the Fourth Proportional to 674,655.80, 931,022.81 and 368,732.17

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Solution

The fourth proportional to 674,655.80, 931,022.81 and 368,732.17 is: 508,849.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,655.80 : 931,022.81 = 368,732.17 : x
  2. Step 2: Convert to fraction form
    674,655.80/931,022.81 = 368,732.17/x
  3. Step 3: Cross multiply
    674,655.80x = 931,022.81 × 368,732.17
  4. Step 4: Simplify right side
    674,655.80x = 343,298,056,395.68
  5. Step 5: Solve for x
    x = 343,298,056,395.68/674,655.80
  6. Step 6: Final answer
    x = 508,849.19

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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.