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Finding the Fourth Proportional to 636,189.52, 877,943.36 and 364,261.60

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Solution

The fourth proportional to 636,189.52, 877,943.36 and 364,261.60 is: 502,682.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,189.52 : 877,943.36 = 364,261.60 : x
  2. Step 2: Convert to fraction form
    636,189.52/877,943.36 = 364,261.60/x
  3. Step 3: Cross multiply
    636,189.52x = 877,943.36 × 364,261.60
  4. Step 4: Simplify right side
    636,189.52x = 319,801,053,022.98
  5. Step 5: Solve for x
    x = 319,801,053,022.98/636,189.52
  6. Step 6: Final answer
    x = 502,682.05

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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.