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Finding the Fourth Proportional to 836,640.90, 1,156,803.93 and 730,352.70

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Solution

The fourth proportional to 836,640.90, 1,156,803.93 and 730,352.70 is: 1,009,841.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,640.90 : 1,156,803.93 = 730,352.70 : x
  2. Step 2: Convert to fraction form
    836,640.90/1,156,803.93 = 730,352.70/x
  3. Step 3: Cross multiply
    836,640.90x = 1,156,803.93 × 730,352.70
  4. Step 4: Simplify right side
    836,640.90x = 844,874,873,646.11
  5. Step 5: Solve for x
    x = 844,874,873,646.11/836,640.90
  6. Step 6: Final answer
    x = 1,009,841.71

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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.