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Finding the Fourth Proportional to 674,281.16, 930,508.63 and 368,362.65

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Solution

The fourth proportional to 674,281.16, 930,508.63 and 368,362.65 is: 508,340.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,281.16 : 930,508.63 = 368,362.65 : x
  2. Step 2: Convert to fraction form
    674,281.16/930,508.63 = 368,362.65/x
  3. Step 3: Cross multiply
    674,281.16x = 930,508.63 × 368,362.65
  4. Step 4: Simplify right side
    674,281.16x = 342,764,627,363.17
  5. Step 5: Solve for x
    x = 342,764,627,363.17/674,281.16
  6. Step 6: Final answer
    x = 508,340.81

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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.