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Finding the Fourth Proportional to 360,889.32, 498,021.23 and 199,740.93

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Solution

The fourth proportional to 360,889.32, 498,021.23 and 199,740.93 is: 275,639.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,889.32 : 498,021.23 = 199,740.93 : x
  2. Step 2: Convert to fraction form
    360,889.32/498,021.23 = 199,740.93/x
  3. Step 3: Cross multiply
    360,889.32x = 498,021.23 × 199,740.93
  4. Step 4: Simplify right side
    360,889.32x = 99,475,222,641.24
  5. Step 5: Solve for x
    x = 99,475,222,641.24/360,889.32
  6. Step 6: Final answer
    x = 275,639.14

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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.