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Finding the Fourth Proportional to 362,287.20, 543,430.80 and 185,140.20

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Solution

The fourth proportional to 362,287.20, 543,430.80 and 185,140.20 is: 277,710.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,287.20 : 543,430.80 = 185,140.20 : x
  2. Step 2: Convert to fraction form
    362,287.20/543,430.80 = 185,140.20/x
  3. Step 3: Cross multiply
    362,287.20x = 543,430.80 × 185,140.20
  4. Step 4: Simplify right side
    362,287.20x = 100,610,886,998.16
  5. Step 5: Solve for x
    x = 100,610,886,998.16/362,287.20
  6. Step 6: Final answer
    x = 277,710.30

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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.