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Finding the Fourth Proportional to 519,070.33, 716,366.48 and 315,074.46

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Solution

The fourth proportional to 519,070.33, 716,366.48 and 315,074.46 is: 434,832.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,070.33 : 716,366.48 = 315,074.46 : x
  2. Step 2: Convert to fraction form
    519,070.33/716,366.48 = 315,074.46/x
  3. Step 3: Cross multiply
    519,070.33x = 716,366.48 × 315,074.46
  4. Step 4: Simplify right side
    519,070.33x = 225,708,780,701.84
  5. Step 5: Solve for x
    x = 225,708,780,701.84/519,070.33
  6. Step 6: Final answer
    x = 434,832.76

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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.