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Finding the Fourth Proportional to 462,530.88, 638,284.32 and 261,322.56

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Solution

The fourth proportional to 462,530.88, 638,284.32 and 261,322.56 is: 360,620.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,530.88 : 638,284.32 = 261,322.56 : x
  2. Step 2: Convert to fraction form
    462,530.88/638,284.32 = 261,322.56/x
  3. Step 3: Cross multiply
    462,530.88x = 638,284.32 × 261,322.56
  4. Step 4: Simplify right side
    462,530.88x = 166,798,092,510.26
  5. Step 5: Solve for x
    x = 166,798,092,510.26/462,530.88
  6. Step 6: Final answer
    x = 360,620.45

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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.