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Finding the Fourth Proportional to 606,822.79, 910,502.78 and 318,566.62

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Solution

The fourth proportional to 606,822.79, 910,502.78 and 318,566.62 is: 477,990.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,822.79 : 910,502.78 = 318,566.62 : x
  2. Step 2: Convert to fraction form
    606,822.79/910,502.78 = 318,566.62/x
  3. Step 3: Cross multiply
    606,822.79x = 910,502.78 × 318,566.62
  4. Step 4: Simplify right side
    606,822.79x = 290,055,792,670.50
  5. Step 5: Solve for x
    x = 290,055,792,670.50/606,822.79
  6. Step 6: Final answer
    x = 477,990.94

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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.