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Finding the Fourth Proportional to 542,965.59, 749,292.60 and 301,247.58

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Solution

The fourth proportional to 542,965.59, 749,292.60 and 301,247.58 is: 415,721.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,965.59 : 749,292.60 = 301,247.58 : x
  2. Step 2: Convert to fraction form
    542,965.59/749,292.60 = 301,247.58/x
  3. Step 3: Cross multiply
    542,965.59x = 749,292.60 × 301,247.58
  4. Step 4: Simplify right side
    542,965.59x = 225,722,580,955.67
  5. Step 5: Solve for x
    x = 225,722,580,955.67/542,965.59
  6. Step 6: Final answer
    x = 415,721.71

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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.