Home / 261,295.56-391,943.52-172,528.20

Finding the Fourth Proportional to 261,295.56, 391,943.52 and 172,528.20

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Solution

The fourth proportional to 261,295.56, 391,943.52 and 172,528.20 is: 258,792.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,295.56 : 391,943.52 = 172,528.20 : x
  2. Step 2: Convert to fraction form
    261,295.56/391,943.52 = 172,528.20/x
  3. Step 3: Cross multiply
    261,295.56x = 391,943.52 × 172,528.20
  4. Step 4: Simplify right side
    261,295.56x = 67,621,310,007.26
  5. Step 5: Solve for x
    x = 67,621,310,007.26/261,295.56
  6. Step 6: Final answer
    x = 258,792.42

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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.