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Finding the Fourth Proportional to 438,191.00, 657,286.50 and 105,767.00

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Solution

The fourth proportional to 438,191.00, 657,286.50 and 105,767.00 is: 158,650.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,191.00 : 657,286.50 = 105,767.00 : x
  2. Step 2: Convert to fraction form
    438,191.00/657,286.50 = 105,767.00/x
  3. Step 3: Cross multiply
    438,191.00x = 657,286.50 × 105,767.00
  4. Step 4: Simplify right side
    438,191.00x = 69,519,220,225.58
  5. Step 5: Solve for x
    x = 69,519,220,225.58/438,191.00
  6. Step 6: Final answer
    x = 158,650.50

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1.5x scale

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.