Home / 514,256.80-771,385.20-140,279.20

Finding the Fourth Proportional to 514,256.80, 771,385.20 and 140,279.20

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Solution

The fourth proportional to 514,256.80, 771,385.20 and 140,279.20 is: 210,418.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,256.80 : 771,385.20 = 140,279.20 : x
  2. Step 2: Convert to fraction form
    514,256.80/771,385.20 = 140,279.20/x
  3. Step 3: Cross multiply
    514,256.80x = 771,385.20 × 140,279.20
  4. Step 4: Simplify right side
    514,256.80x = 108,209,298,747.84
  5. Step 5: Solve for x
    x = 108,209,298,747.84/514,256.80
  6. Step 6: Final answer
    x = 210,418.80

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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.