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Finding the Fourth Proportional to 360,423.80, 497,358.66 and 199,280.84

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Solution

The fourth proportional to 360,423.80, 497,358.66 and 199,280.84 is: 274,993.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,423.80 : 497,358.66 = 199,280.84 : x
  2. Step 2: Convert to fraction form
    360,423.80/497,358.66 = 199,280.84/x
  3. Step 3: Cross multiply
    360,423.80x = 497,358.66 × 199,280.84
  4. Step 4: Simplify right side
    360,423.80x = 99,114,051,546.07
  5. Step 5: Solve for x
    x = 99,114,051,546.07/360,423.80
  6. Step 6: Final answer
    x = 274,993.08

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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.