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Finding the Fourth Proportional to 571,475.19, 788,605.47 and 326,411.82

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Solution

The fourth proportional to 571,475.19, 788,605.47 and 326,411.82 is: 450,431.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,475.19 : 788,605.47 = 326,411.82 : x
  2. Step 2: Convert to fraction form
    571,475.19/788,605.47 = 326,411.82/x
  3. Step 3: Cross multiply
    571,475.19x = 788,605.47 × 326,411.82
  4. Step 4: Simplify right side
    571,475.19x = 257,410,146,724.66
  5. Step 5: Solve for x
    x = 257,410,146,724.66/571,475.19
  6. Step 6: Final answer
    x = 450,431.01

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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.