Home / 1,211,589.20-1,817,402.80-358,747.40

Finding the Fourth Proportional to 1,211,589.20, 1,817,402.80 and 358,747.40

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Solution

The fourth proportional to 1,211,589.20, 1,817,402.80 and 358,747.40 is: 538,126.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,589.20 : 1,817,402.80 = 358,747.40 : x
  2. Step 2: Convert to fraction form
    1,211,589.20/1,817,402.80 = 358,747.40/x
  3. Step 3: Cross multiply
    1,211,589.20x = 1,817,402.80 × 358,747.40
  4. Step 4: Simplify right side
    1,211,589.20x = 651,988,529,252.72
  5. Step 5: Solve for x
    x = 651,988,529,252.72/1,211,589.20
  6. Step 6: Final answer
    x = 538,126.73

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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.