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Finding the Fourth Proportional to 559,508.20, 839,510.34 and 293,205.40

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Solution

The fourth proportional to 559,508.20, 839,510.34 and 293,205.40 is: 439,938.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,508.20 : 839,510.34 = 293,205.40 : x
  2. Step 2: Convert to fraction form
    559,508.20/839,510.34 = 293,205.40/x
  3. Step 3: Cross multiply
    559,508.20x = 839,510.34 × 293,205.40
  4. Step 4: Simplify right side
    559,508.20x = 246,148,965,043.84
  5. Step 5: Solve for x
    x = 246,148,965,043.84/559,508.20
  6. Step 6: Final answer
    x = 439,938.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.