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Finding the Fourth Proportional to 540,891.54, 746,585.55 and 357,264.45

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Solution

The fourth proportional to 540,891.54, 746,585.55 and 357,264.45 is: 493,127.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,891.54 : 746,585.55 = 357,264.45 : x
  2. Step 2: Convert to fraction form
    540,891.54/746,585.55 = 357,264.45/x
  3. Step 3: Cross multiply
    540,891.54x = 746,585.55 × 357,264.45
  4. Step 4: Simplify right side
    540,891.54x = 266,728,475,898.70
  5. Step 5: Solve for x
    x = 266,728,475,898.70/540,891.54
  6. Step 6: Final answer
    x = 493,127.47

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Double scale
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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.