Home / 314,726.20-434,324.10-187,407.16

Finding the Fourth Proportional to 314,726.20, 434,324.10 and 187,407.16

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Solution

The fourth proportional to 314,726.20, 434,324.10 and 187,407.16 is: 258,623.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,726.20 : 434,324.10 = 187,407.16 : x
  2. Step 2: Convert to fraction form
    314,726.20/434,324.10 = 187,407.16/x
  3. Step 3: Cross multiply
    314,726.20x = 434,324.10 × 187,407.16
  4. Step 4: Simplify right side
    314,726.20x = 81,395,446,100.56
  5. Step 5: Solve for x
    x = 81,395,446,100.56/314,726.20
  6. Step 6: Final answer
    x = 258,623.04

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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.