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Finding the Fourth Proportional to 536,507.72, 740,445.01 and 321,765.92

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Solution

The fourth proportional to 536,507.72, 740,445.01 and 321,765.92 is: 444,075.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,507.72 : 740,445.01 = 321,765.92 : x
  2. Step 2: Convert to fraction form
    536,507.72/740,445.01 = 321,765.92/x
  3. Step 3: Cross multiply
    536,507.72x = 740,445.01 × 321,765.92
  4. Step 4: Simplify right side
    536,507.72x = 238,249,966,149.83
  5. Step 5: Solve for x
    x = 238,249,966,149.83/536,507.72
  6. Step 6: Final answer
    x = 444,075.56

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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.