Home / 261,281.75-389,752.79-252,535.37

Finding the Fourth Proportional to 261,281.75, 389,752.79 and 252,535.37

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Solution

The fourth proportional to 261,281.75, 389,752.79 and 252,535.37 is: 376,705.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,281.75 : 389,752.79 = 252,535.37 : x
  2. Step 2: Convert to fraction form
    261,281.75/389,752.79 = 252,535.37/x
  3. Step 3: Cross multiply
    261,281.75x = 389,752.79 × 252,535.37
  4. Step 4: Simplify right side
    261,281.75x = 98,426,361,819.74
  5. Step 5: Solve for x
    x = 98,426,361,819.74/261,281.75
  6. Step 6: Final answer
    x = 376,705.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.