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Finding the Fourth Proportional to 922,640.22, 1,273,275.05 and 535,425.81

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Solution

The fourth proportional to 922,640.22, 1,273,275.05 and 535,425.81 is: 738,905.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,640.22 : 1,273,275.05 = 535,425.81 : x
  2. Step 2: Convert to fraction form
    922,640.22/1,273,275.05 = 535,425.81/x
  3. Step 3: Cross multiply
    922,640.22x = 1,273,275.05 × 535,425.81
  4. Step 4: Simplify right side
    922,640.22x = 681,744,322,321.91
  5. Step 5: Solve for x
    x = 681,744,322,321.91/922,640.22
  6. Step 6: Final answer
    x = 738,905.92

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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.