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Finding the Fourth Proportional to 584,674.72, 806,851.92 and 316,402.72

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Solution

The fourth proportional to 584,674.72, 806,851.92 and 316,402.72 is: 436,636.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,674.72 : 806,851.92 = 316,402.72 : x
  2. Step 2: Convert to fraction form
    584,674.72/806,851.92 = 316,402.72/x
  3. Step 3: Cross multiply
    584,674.72x = 806,851.92 × 316,402.72
  4. Step 4: Simplify right side
    584,674.72x = 255,290,142,125.22
  5. Step 5: Solve for x
    x = 255,290,142,125.22/584,674.72
  6. Step 6: Final answer
    x = 436,636.19

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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.