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Finding the Fourth Proportional to 566,561.49, 781,911.34 and 423,072.42

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Solution

The fourth proportional to 566,561.49, 781,911.34 and 423,072.42 is: 583,882.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,561.49 : 781,911.34 = 423,072.42 : x
  2. Step 2: Convert to fraction form
    566,561.49/781,911.34 = 423,072.42/x
  3. Step 3: Cross multiply
    566,561.49x = 781,911.34 × 423,072.42
  4. Step 4: Simplify right side
    566,561.49x = 330,805,122,839.24
  5. Step 5: Solve for x
    x = 330,805,122,839.24/566,561.49
  6. Step 6: Final answer
    x = 583,882.12

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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.