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Finding the Fourth Proportional to 592,685.40, 817,897.59 and 338,040.84

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Solution

The fourth proportional to 592,685.40, 817,897.59 and 338,040.84 is: 466,491.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,685.40 : 817,897.59 = 338,040.84 : x
  2. Step 2: Convert to fraction form
    592,685.40/817,897.59 = 338,040.84/x
  3. Step 3: Cross multiply
    592,685.40x = 817,897.59 × 338,040.84
  4. Step 4: Simplify right side
    592,685.40x = 276,482,788,357.58
  5. Step 5: Solve for x
    x = 276,482,788,357.58/592,685.40
  6. Step 6: Final answer
    x = 466,491.65

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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.