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Finding the Fourth Proportional to 674,153.90, 930,326.85 and 368,230.48

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Solution

The fourth proportional to 674,153.90, 930,326.85 and 368,230.48 is: 508,155.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,153.90 : 930,326.85 = 368,230.48 : x
  2. Step 2: Convert to fraction form
    674,153.90/930,326.85 = 368,230.48/x
  3. Step 3: Cross multiply
    674,153.90x = 930,326.85 × 368,230.48
  4. Step 4: Simplify right side
    674,153.90x = 342,574,702,532.39
  5. Step 5: Solve for x
    x = 342,574,702,532.39/674,153.90
  6. Step 6: Final answer
    x = 508,155.04

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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.