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Finding the Fourth Proportional to 370,686.48, 511,602 and 234,732.84

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Solution

The fourth proportional to 370,686.48, 511,602 and 234,732.84 is: 323,965.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,686.48 : 511,602 = 234,732.84 : x
  2. Step 2: Convert to fraction form
    370,686.48/511,602 = 234,732.84/x
  3. Step 3: Cross multiply
    370,686.48x = 511,602 × 234,732.84
  4. Step 4: Simplify right side
    370,686.48x = 120,089,790,409.68
  5. Step 5: Solve for x
    x = 120,089,790,409.68/370,686.48
  6. Step 6: Final answer
    x = 323,965.93

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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.