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Finding the Fourth Proportional to 737,552.10, 1,015,679.52 and 640,711.74

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Solution

The fourth proportional to 737,552.10, 1,015,679.52 and 640,711.74 is: 882,321.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    737,552.10 : 1,015,679.52 = 640,711.74 : x
  2. Step 2: Convert to fraction form
    737,552.10/1,015,679.52 = 640,711.74/x
  3. Step 3: Cross multiply
    737,552.10x = 1,015,679.52 × 640,711.74
  4. Step 4: Simplify right side
    737,552.10x = 650,757,792,541.57
  5. Step 5: Solve for x
    x = 650,757,792,541.57/737,552.10
  6. Step 6: Final answer
    x = 882,321.12

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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.