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Finding the Fourth Proportional to 334,445.91, 460,777.85 and 318,502.68

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Solution

The fourth proportional to 334,445.91, 460,777.85 and 318,502.68 is: 438,812.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,445.91 : 460,777.85 = 318,502.68 : x
  2. Step 2: Convert to fraction form
    334,445.91/460,777.85 = 318,502.68/x
  3. Step 3: Cross multiply
    334,445.91x = 460,777.85 × 318,502.68
  4. Step 4: Simplify right side
    334,445.91x = 146,758,980,109.64
  5. Step 5: Solve for x
    x = 146,758,980,109.64/334,445.91
  6. Step 6: Final answer
    x = 438,812.30

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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.