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Finding the Fourth Proportional to 571,295.16, 788,373.90 and 329,578.20

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Solution

The fourth proportional to 571,295.16, 788,373.90 and 329,578.20 is: 454,810.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,295.16 : 788,373.90 = 329,578.20 : x
  2. Step 2: Convert to fraction form
    571,295.16/788,373.90 = 329,578.20/x
  3. Step 3: Cross multiply
    571,295.16x = 788,373.90 × 329,578.20
  4. Step 4: Simplify right side
    571,295.16x = 259,830,850,888.98
  5. Step 5: Solve for x
    x = 259,830,850,888.98/571,295.16
  6. Step 6: Final answer
    x = 454,810.17

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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.