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Finding the Fourth Proportional to 577,368.74, 866,295.31 and 257,300.11

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Solution

The fourth proportional to 577,368.74, 866,295.31 and 257,300.11 is: 386,058.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,368.74 : 866,295.31 = 257,300.11 : x
  2. Step 2: Convert to fraction form
    577,368.74/866,295.31 = 257,300.11/x
  3. Step 3: Cross multiply
    577,368.74x = 866,295.31 × 257,300.11
  4. Step 4: Simplify right side
    577,368.74x = 222,897,874,224.01
  5. Step 5: Solve for x
    x = 222,897,874,224.01/577,368.74
  6. Step 6: Final answer
    x = 386,058.10

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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.