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Finding the Fourth Proportional to 568,696.71, 785,030.48 and 387,591.69

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Solution

The fourth proportional to 568,696.71, 785,030.48 and 387,591.69 is: 535,032.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,696.71 : 785,030.48 = 387,591.69 : x
  2. Step 2: Convert to fraction form
    568,696.71/785,030.48 = 387,591.69/x
  3. Step 3: Cross multiply
    568,696.71x = 785,030.48 × 387,591.69
  4. Step 4: Simplify right side
    568,696.71x = 304,271,290,444.71
  5. Step 5: Solve for x
    x = 304,271,290,444.71/568,696.71
  6. Step 6: Final answer
    x = 535,032.62

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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.