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Finding the Fourth Proportional to 370,886.08, 511,831.56 and 225,641.92

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Solution

The fourth proportional to 370,886.08, 511,831.56 and 225,641.92 is: 311,391.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,886.08 : 511,831.56 = 225,641.92 : x
  2. Step 2: Convert to fraction form
    370,886.08/511,831.56 = 225,641.92/x
  3. Step 3: Cross multiply
    370,886.08x = 511,831.56 × 225,641.92
  4. Step 4: Simplify right side
    370,886.08x = 115,490,655,915.00
  5. Step 5: Solve for x
    x = 115,490,655,915.00/370,886.08
  6. Step 6: Final answer
    x = 311,391.18

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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.