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Finding the Fourth Proportional to 571,859.40, 857,205.90 and 335,080.20

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Solution

The fourth proportional to 571,859.40, 857,205.90 and 335,080.20 is: 502,278.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,859.40 : 857,205.90 = 335,080.20 : x
  2. Step 2: Convert to fraction form
    571,859.40/857,205.90 = 335,080.20/x
  3. Step 3: Cross multiply
    571,859.40x = 857,205.90 × 335,080.20
  4. Step 4: Simplify right side
    571,859.40x = 287,232,724,413.18
  5. Step 5: Solve for x
    x = 287,232,724,413.18/571,859.40
  6. Step 6: Final answer
    x = 502,278.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.