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Finding the Fourth Proportional to 500,645.71, 750,913.42 and 140,827.97

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Solution

The fourth proportional to 500,645.71, 750,913.42 and 140,827.97 is: 211,226.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,645.71 : 750,913.42 = 140,827.97 : x
  2. Step 2: Convert to fraction form
    500,645.71/750,913.42 = 140,827.97/x
  3. Step 3: Cross multiply
    500,645.71x = 750,913.42 × 140,827.97
  4. Step 4: Simplify right side
    500,645.71x = 105,749,614,242.62
  5. Step 5: Solve for x
    x = 105,749,614,242.62/500,645.71
  6. Step 6: Final answer
    x = 211,226.45

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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.