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Finding the Fourth Proportional to 571,570.82, 788,778.59 and 313,432.41

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Solution

The fourth proportional to 571,570.82, 788,778.59 and 313,432.41 is: 432,542.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,570.82 : 788,778.59 = 313,432.41 : x
  2. Step 2: Convert to fraction form
    571,570.82/788,778.59 = 313,432.41/x
  3. Step 3: Cross multiply
    571,570.82x = 788,778.59 × 313,432.41
  4. Step 4: Simplify right side
    571,570.82x = 247,228,773,476.42
  5. Step 5: Solve for x
    x = 247,228,773,476.42/571,570.82
  6. Step 6: Final answer
    x = 432,542.68

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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.