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Finding the Fourth Proportional to 705,193.57, 972,926.81 and 450,691.57

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Solution

The fourth proportional to 705,193.57, 972,926.81 and 450,691.57 is: 621,800.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,193.57 : 972,926.81 = 450,691.57 : x
  2. Step 2: Convert to fraction form
    705,193.57/972,926.81 = 450,691.57/x
  3. Step 3: Cross multiply
    705,193.57x = 972,926.81 × 450,691.57
  4. Step 4: Simplify right side
    705,193.57x = 438,489,909,240.53
  5. Step 5: Solve for x
    x = 438,489,909,240.53/705,193.57
  6. Step 6: Final answer
    x = 621,800.78

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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.