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Finding the Fourth Proportional to 535,681.76, 739,246.40 and 293,979.98

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Solution

The fourth proportional to 535,681.76, 739,246.40 and 293,979.98 is: 405,695.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,681.76 : 739,246.40 = 293,979.98 : x
  2. Step 2: Convert to fraction form
    535,681.76/739,246.40 = 293,979.98/x
  3. Step 3: Cross multiply
    535,681.76x = 739,246.40 × 293,979.98
  4. Step 4: Simplify right side
    535,681.76x = 217,323,643,367.71
  5. Step 5: Solve for x
    x = 217,323,643,367.71/535,681.76
  6. Step 6: Final answer
    x = 405,695.44

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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.