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Finding the Fourth Proportional to 826,618.16, 1,240,056.84 and 353,306

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Solution

The fourth proportional to 826,618.16, 1,240,056.84 and 353,306 is: 530,014.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,618.16 : 1,240,056.84 = 353,306 : x
  2. Step 2: Convert to fraction form
    826,618.16/1,240,056.84 = 353,306/x
  3. Step 3: Cross multiply
    826,618.16x = 1,240,056.84 × 353,306
  4. Step 4: Simplify right side
    826,618.16x = 438,119,521,913.04
  5. Step 5: Solve for x
    x = 438,119,521,913.04/826,618.16
  6. Step 6: Final answer
    x = 530,014.39

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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.