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Finding the Fourth Proportional to 506,012.65, 698,323.45 and 291,184.85

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Solution

The fourth proportional to 506,012.65, 698,323.45 and 291,184.85 is: 401,850.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,012.65 : 698,323.45 = 291,184.85 : x
  2. Step 2: Convert to fraction form
    506,012.65/698,323.45 = 291,184.85/x
  3. Step 3: Cross multiply
    506,012.65x = 698,323.45 × 291,184.85
  4. Step 4: Simplify right side
    506,012.65x = 203,341,210,057.58
  5. Step 5: Solve for x
    x = 203,341,210,057.58/506,012.65
  6. Step 6: Final answer
    x = 401,850.05

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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.