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Finding the Fourth Proportional to 519,398.76, 716,770.98 and 293,065.32

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Solution

The fourth proportional to 519,398.76, 716,770.98 and 293,065.32 is: 404,430.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,398.76 : 716,770.98 = 293,065.32 : x
  2. Step 2: Convert to fraction form
    519,398.76/716,770.98 = 293,065.32/x
  3. Step 3: Cross multiply
    519,398.76x = 716,770.98 × 293,065.32
  4. Step 4: Simplify right side
    519,398.76x = 210,060,716,620.41
  5. Step 5: Solve for x
    x = 210,060,716,620.41/519,398.76
  6. Step 6: Final answer
    x = 404,430.53

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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.