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Finding the Fourth Proportional to 484,632.33, 668,867.82 and 291,147.76

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Solution

The fourth proportional to 484,632.33, 668,867.82 and 291,147.76 is: 401,829.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,632.33 : 668,867.82 = 291,147.76 : x
  2. Step 2: Convert to fraction form
    484,632.33/668,867.82 = 291,147.76/x
  3. Step 3: Cross multiply
    484,632.33x = 668,867.82 × 291,147.76
  4. Step 4: Simplify right side
    484,632.33x = 194,739,364,184.74
  5. Step 5: Solve for x
    x = 194,739,364,184.74/484,632.33
  6. Step 6: Final answer
    x = 401,829.08

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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.