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Finding the Fourth Proportional to 283,791.42, 425,674.80 and 70,554.90

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Solution

The fourth proportional to 283,791.42, 425,674.80 and 70,554.90 is: 105,829.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,791.42 : 425,674.80 = 70,554.90 : x
  2. Step 2: Convert to fraction form
    283,791.42/425,674.80 = 70,554.90/x
  3. Step 3: Cross multiply
    283,791.42x = 425,674.80 × 70,554.90
  4. Step 4: Simplify right side
    283,791.42x = 30,033,442,946.52
  5. Step 5: Solve for x
    x = 30,033,442,946.52/283,791.42
  6. Step 6: Final answer
    x = 105,829.28

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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.