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Finding the Fourth Proportional to 575,763.60, 794,517.93 and 317,643.87

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Solution

The fourth proportional to 575,763.60, 794,517.93 and 317,643.87 is: 438,328.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,763.60 : 794,517.93 = 317,643.87 : x
  2. Step 2: Convert to fraction form
    575,763.60/794,517.93 = 317,643.87/x
  3. Step 3: Cross multiply
    575,763.60x = 794,517.93 × 317,643.87
  4. Step 4: Simplify right side
    575,763.60x = 252,373,750,069.59
  5. Step 5: Solve for x
    x = 252,373,750,069.59/575,763.60
  6. Step 6: Final answer
    x = 438,328.77

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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.