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Finding the Fourth Proportional to 638,357.52, 881,013.12 and 366,510.54

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Solution

The fourth proportional to 638,357.52, 881,013.12 and 366,510.54 is: 505,830.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,357.52 : 881,013.12 = 366,510.54 : x
  2. Step 2: Convert to fraction form
    638,357.52/881,013.12 = 366,510.54/x
  3. Step 3: Cross multiply
    638,357.52x = 881,013.12 × 366,510.54
  4. Step 4: Simplify right side
    638,357.52x = 322,900,594,358.29
  5. Step 5: Solve for x
    x = 322,900,594,358.29/638,357.52
  6. Step 6: Final answer
    x = 505,830.33

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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.