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Finding the Fourth Proportional to 578,024.71, 797,661.30 and 316,378.69

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Solution

The fourth proportional to 578,024.71, 797,661.30 and 316,378.69 is: 436,595.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,024.71 : 797,661.30 = 316,378.69 : x
  2. Step 2: Convert to fraction form
    578,024.71/797,661.30 = 316,378.69/x
  3. Step 3: Cross multiply
    578,024.71x = 797,661.30 × 316,378.69
  4. Step 4: Simplify right side
    578,024.71x = 252,363,037,157.70
  5. Step 5: Solve for x
    x = 252,363,037,157.70/578,024.71
  6. Step 6: Final answer
    x = 436,595.59

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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.