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Finding the Fourth Proportional to 674,833.71, 930,666.95 and 559,930.09

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Solution

The fourth proportional to 674,833.71, 930,666.95 and 559,930.09 is: 772,202.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,833.71 : 930,666.95 = 559,930.09 : x
  2. Step 2: Convert to fraction form
    674,833.71/930,666.95 = 559,930.09/x
  3. Step 3: Cross multiply
    674,833.71x = 930,666.95 × 559,930.09
  4. Step 4: Simplify right side
    674,833.71x = 521,108,426,273.88
  5. Step 5: Solve for x
    x = 521,108,426,273.88/674,833.71
  6. Step 6: Final answer
    x = 772,202.73

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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.