Home / 514,139.20-771,208.80-265,307.20

Finding the Fourth Proportional to 514,139.20, 771,208.80 and 265,307.20

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Solution

The fourth proportional to 514,139.20, 771,208.80 and 265,307.20 is: 397,960.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,139.20 : 771,208.80 = 265,307.20 : x
  2. Step 2: Convert to fraction form
    514,139.20/771,208.80 = 265,307.20/x
  3. Step 3: Cross multiply
    514,139.20x = 771,208.80 × 265,307.20
  4. Step 4: Simplify right side
    514,139.20x = 204,607,247,343.36
  5. Step 5: Solve for x
    x = 204,607,247,343.36/514,139.20
  6. Step 6: Final answer
    x = 397,960.80

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Similar ratio
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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.