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Finding the Fourth Proportional to 296,851.40, 445,277.10 and 75,235.40

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Solution

The fourth proportional to 296,851.40, 445,277.10 and 75,235.40 is: 112,853.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,851.40 : 445,277.10 = 75,235.40 : x
  2. Step 2: Convert to fraction form
    296,851.40/445,277.10 = 75,235.40/x
  3. Step 3: Cross multiply
    296,851.40x = 445,277.10 × 75,235.40
  4. Step 4: Simplify right side
    296,851.40x = 33,500,600,729.34
  5. Step 5: Solve for x
    x = 33,500,600,729.34/296,851.40
  6. Step 6: Final answer
    x = 112,853.10

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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.