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Finding the Fourth Proportional to 594,371.88, 820,017.95 and 390,532.59

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Solution

The fourth proportional to 594,371.88, 820,017.95 and 390,532.59 is: 538,793.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    594,371.88 : 820,017.95 = 390,532.59 : x
  2. Step 2: Convert to fraction form
    594,371.88/820,017.95 = 390,532.59/x
  3. Step 3: Cross multiply
    594,371.88x = 820,017.95 × 390,532.59
  4. Step 4: Simplify right side
    594,371.88x = 320,243,731,907.33
  5. Step 5: Solve for x
    x = 320,243,731,907.33/594,371.88
  6. Step 6: Final answer
    x = 538,793.54

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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.