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Finding the Fourth Proportional to 574,940.14, 787,670.84 and 553,391.71

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Solution

The fourth proportional to 574,940.14, 787,670.84 and 553,391.71 is: 758,149.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,940.14 : 787,670.84 = 553,391.71 : x
  2. Step 2: Convert to fraction form
    574,940.14/787,670.84 = 553,391.71/x
  3. Step 3: Cross multiply
    574,940.14x = 787,670.84 × 553,391.71
  4. Step 4: Simplify right side
    574,940.14x = 435,890,513,064.74
  5. Step 5: Solve for x
    x = 435,890,513,064.74/574,940.14
  6. Step 6: Final answer
    x = 758,149.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.