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Finding the Fourth Proportional to 360,010.20, 540,015.30 and 248,035.80

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Solution

The fourth proportional to 360,010.20, 540,015.30 and 248,035.80 is: 372,053.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,010.20 : 540,015.30 = 248,035.80 : x
  2. Step 2: Convert to fraction form
    360,010.20/540,015.30 = 248,035.80/x
  3. Step 3: Cross multiply
    360,010.20x = 540,015.30 × 248,035.80
  4. Step 4: Simplify right side
    360,010.20x = 133,943,126,947.74
  5. Step 5: Solve for x
    x = 133,943,126,947.74/360,010.20
  6. Step 6: Final answer
    x = 372,053.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.