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Finding the Fourth Proportional to 575,436.51, 794,149.65 and 317,363.94

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Solution

The fourth proportional to 575,436.51, 794,149.65 and 317,363.94 is: 437,988.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,436.51 : 794,149.65 = 317,363.94 : x
  2. Step 2: Convert to fraction form
    575,436.51/794,149.65 = 317,363.94/x
  3. Step 3: Cross multiply
    575,436.51x = 794,149.65 × 317,363.94
  4. Step 4: Simplify right side
    575,436.51x = 252,034,461,873.62
  5. Step 5: Solve for x
    x = 252,034,461,873.62/575,436.51
  6. Step 6: Final answer
    x = 437,988.31

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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.