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Finding the Fourth Proportional to 555,764.15, 766,944.52 and 314,041.50

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Solution

The fourth proportional to 555,764.15, 766,944.52 and 314,041.50 is: 433,371.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,764.15 : 766,944.52 = 314,041.50 : x
  2. Step 2: Convert to fraction form
    555,764.15/766,944.52 = 314,041.50/x
  3. Step 3: Cross multiply
    555,764.15x = 766,944.52 × 314,041.50
  4. Step 4: Simplify right side
    555,764.15x = 240,852,406,692.48
  5. Step 5: Solve for x
    x = 240,852,406,692.48/555,764.15
  6. Step 6: Final answer
    x = 433,371.61

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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.