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Finding the Fourth Proportional to 411,293.26, 616,710.65 and 126,903.07

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Solution

The fourth proportional to 411,293.26, 616,710.65 and 126,903.07 is: 190,283.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,293.26 : 616,710.65 = 126,903.07 : x
  2. Step 2: Convert to fraction form
    411,293.26/616,710.65 = 126,903.07/x
  3. Step 3: Cross multiply
    411,293.26x = 616,710.65 × 126,903.07
  4. Step 4: Simplify right side
    411,293.26x = 78,262,473,562.18
  5. Step 5: Solve for x
    x = 78,262,473,562.18/411,293.26
  6. Step 6: Final answer
    x = 190,283.87

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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.