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Finding the Fourth Proportional to 581,507.16, 872,377.92 and 207,520.44

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Solution

The fourth proportional to 581,507.16, 872,377.92 and 207,520.44 is: 311,322.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,507.16 : 872,377.92 = 207,520.44 : x
  2. Step 2: Convert to fraction form
    581,507.16/872,377.92 = 207,520.44/x
  3. Step 3: Cross multiply
    581,507.16x = 872,377.92 × 207,520.44
  4. Step 4: Simplify right side
    581,507.16x = 181,036,249,804.69
  5. Step 5: Solve for x
    x = 181,036,249,804.69/581,507.16
  6. Step 6: Final answer
    x = 311,322.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.