Home / 314,723.20-434,319.96-187,404.16

Finding the Fourth Proportional to 314,723.20, 434,319.96 and 187,404.16

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Solution

The fourth proportional to 314,723.20, 434,319.96 and 187,404.16 is: 258,618.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,723.20 : 434,319.96 = 187,404.16 : x
  2. Step 2: Convert to fraction form
    314,723.20/434,319.96 = 187,404.16/x
  3. Step 3: Cross multiply
    314,723.20x = 434,319.96 × 187,404.16
  4. Step 4: Simplify right side
    314,723.20x = 81,393,367,275.03
  5. Step 5: Solve for x
    x = 81,393,367,275.03/314,723.20
  6. Step 6: Final answer
    x = 258,618.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.