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Finding the Fourth Proportional to 625,570.49, 864,004.73 and 411,665.49

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Solution

The fourth proportional to 625,570.49, 864,004.73 and 411,665.49 is: 568,570.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,570.49 : 864,004.73 = 411,665.49 : x
  2. Step 2: Convert to fraction form
    625,570.49/864,004.73 = 411,665.49/x
  3. Step 3: Cross multiply
    625,570.49x = 864,004.73 × 411,665.49
  4. Step 4: Simplify right side
    625,570.49x = 355,680,928,479.44
  5. Step 5: Solve for x
    x = 355,680,928,479.44/625,570.49
  6. Step 6: Final answer
    x = 568,570.50

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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.