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Finding the Fourth Proportional to 654,707.58, 903,487.56 and 368,227.59

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Solution

The fourth proportional to 654,707.58, 903,487.56 and 368,227.59 is: 508,149.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,707.58 : 903,487.56 = 368,227.59 : x
  2. Step 2: Convert to fraction form
    654,707.58/903,487.56 = 368,227.59/x
  3. Step 3: Cross multiply
    654,707.58x = 903,487.56 × 368,227.59
  4. Step 4: Simplify right side
    654,707.58x = 332,689,046,813.78
  5. Step 5: Solve for x
    x = 332,689,046,813.78/654,707.58
  6. Step 6: Final answer
    x = 508,149.07

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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.