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Finding the Fourth Proportional to 519,017.04, 716,293.62 and 315,020.97

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Solution

The fourth proportional to 519,017.04, 716,293.62 and 315,020.97 is: 434,759.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,017.04 : 716,293.62 = 315,020.97 : x
  2. Step 2: Convert to fraction form
    519,017.04/716,293.62 = 315,020.97/x
  3. Step 3: Cross multiply
    519,017.04x = 716,293.62 × 315,020.97
  4. Step 4: Simplify right side
    519,017.04x = 225,647,510,977.21
  5. Step 5: Solve for x
    x = 225,647,510,977.21/519,017.04
  6. Step 6: Final answer
    x = 434,759.35

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1.5x scale

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.