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Finding the Fourth Proportional to 571,626.69, 788,876.33 and 316,972.41

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Solution

The fourth proportional to 571,626.69, 788,876.33 and 316,972.41 is: 437,439.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,626.69 : 788,876.33 = 316,972.41 : x
  2. Step 2: Convert to fraction form
    571,626.69/788,876.33 = 316,972.41/x
  3. Step 3: Cross multiply
    571,626.69x = 788,876.33 × 316,972.41
  4. Step 4: Simplify right side
    571,626.69x = 250,052,031,512.06
  5. Step 5: Solve for x
    x = 250,052,031,512.06/571,626.69
  6. Step 6: Final answer
    x = 437,439.39

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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.