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Finding the Fourth Proportional to 610,216.74, 842,494.37 and 392,522.76

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Solution

The fourth proportional to 610,216.74, 842,494.37 and 392,522.76 is: 541,935.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,216.74 : 842,494.37 = 392,522.76 : x
  2. Step 2: Convert to fraction form
    610,216.74/842,494.37 = 392,522.76/x
  3. Step 3: Cross multiply
    610,216.74x = 842,494.37 × 392,522.76
  4. Step 4: Simplify right side
    610,216.74x = 330,698,213,434.25
  5. Step 5: Solve for x
    x = 330,698,213,434.25/610,216.74
  6. Step 6: Final answer
    x = 541,935.66

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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.