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Finding the Fourth Proportional to 922,659.18, 1,273,240.80 and 540,940.20

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Solution

The fourth proportional to 922,659.18, 1,273,240.80 and 540,940.20 is: 746,480.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,659.18 : 1,273,240.80 = 540,940.20 : x
  2. Step 2: Convert to fraction form
    922,659.18/1,273,240.80 = 540,940.20/x
  3. Step 3: Cross multiply
    922,659.18x = 1,273,240.80 × 540,940.20
  4. Step 4: Simplify right side
    922,659.18x = 688,747,133,000.16
  5. Step 5: Solve for x
    x = 688,747,133,000.16/922,659.18
  6. Step 6: Final answer
    x = 746,480.55

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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.