Home / 1,386,310.34-2,078,575.63-577,255.61

Finding the Fourth Proportional to 1,386,310.34, 2,078,575.63 and 577,255.61

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Solution

The fourth proportional to 1,386,310.34, 2,078,575.63 and 577,255.61 is: 865,512.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,310.34 : 2,078,575.63 = 577,255.61 : x
  2. Step 2: Convert to fraction form
    1,386,310.34/2,078,575.63 = 577,255.61/x
  3. Step 3: Cross multiply
    1,386,310.34x = 2,078,575.63 × 577,255.61
  4. Step 4: Simplify right side
    1,386,310.34x = 1,199,869,446,980.08
  5. Step 5: Solve for x
    x = 1,199,869,446,980.08/1,386,310.34
  6. Step 6: Final answer
    x = 865,512.87

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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.