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Finding the Fourth Proportional to 265,316.14, 398,324.13 and 123,314.23

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Solution

The fourth proportional to 265,316.14, 398,324.13 and 123,314.23 is: 185,133.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,316.14 : 398,324.13 = 123,314.23 : x
  2. Step 2: Convert to fraction form
    265,316.14/398,324.13 = 123,314.23/x
  3. Step 3: Cross multiply
    265,316.14x = 398,324.13 × 123,314.23
  4. Step 4: Simplify right side
    265,316.14x = 49,119,030,773.18
  5. Step 5: Solve for x
    x = 49,119,030,773.18/265,316.14
  6. Step 6: Final answer
    x = 185,133.98

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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.