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Finding the Fourth Proportional to 674,417.62, 930,685.38 and 368,487.46

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Solution

The fourth proportional to 674,417.62, 930,685.38 and 368,487.46 is: 508,506.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,417.62 : 930,685.38 = 368,487.46 : x
  2. Step 2: Convert to fraction form
    674,417.62/930,685.38 = 368,487.46/x
  3. Step 3: Cross multiply
    674,417.62x = 930,685.38 × 368,487.46
  4. Step 4: Simplify right side
    674,417.62x = 342,945,891,735.34
  5. Step 5: Solve for x
    x = 342,945,891,735.34/674,417.62
  6. Step 6: Final answer
    x = 508,506.72

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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.