Home / 340,389.27-469,718.73-187,397.55

Finding the Fourth Proportional to 340,389.27, 469,718.73 and 187,397.55

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Solution

The fourth proportional to 340,389.27, 469,718.73 and 187,397.55 is: 258,598.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,389.27 : 469,718.73 = 187,397.55 : x
  2. Step 2: Convert to fraction form
    340,389.27/469,718.73 = 187,397.55/x
  3. Step 3: Cross multiply
    340,389.27x = 469,718.73 × 187,397.55
  4. Step 4: Simplify right side
    340,389.27x = 88,024,139,191.11
  5. Step 5: Solve for x
    x = 88,024,139,191.11/340,389.27
  6. Step 6: Final answer
    x = 258,598.45

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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.