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Finding the Fourth Proportional to 519,043.75, 716,280.47 and 292,689.25

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Solution

The fourth proportional to 519,043.75, 716,280.47 and 292,689.25 is: 403,911.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,043.75 : 716,280.47 = 292,689.25 : x
  2. Step 2: Convert to fraction form
    519,043.75/716,280.47 = 292,689.25/x
  3. Step 3: Cross multiply
    519,043.75x = 716,280.47 × 292,689.25
  4. Step 4: Simplify right side
    519,043.75x = 209,647,591,397.39
  5. Step 5: Solve for x
    x = 209,647,591,397.39/519,043.75
  6. Step 6: Final answer
    x = 403,911.22

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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.