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Finding the Fourth Proportional to 573,214.30, 791,026.79 and 315,085.66

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Solution

The fourth proportional to 573,214.30, 791,026.79 and 315,085.66 is: 434,813.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,214.30 : 791,026.79 = 315,085.66 : x
  2. Step 2: Convert to fraction form
    573,214.30/791,026.79 = 315,085.66/x
  3. Step 3: Cross multiply
    573,214.30x = 791,026.79 × 315,085.66
  4. Step 4: Simplify right side
    573,214.30x = 249,241,194,651.84
  5. Step 5: Solve for x
    x = 249,241,194,651.84/573,214.30
  6. Step 6: Final answer
    x = 434,813.29

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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.