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Finding the Fourth Proportional to 519,153.80, 716,585.46 and 304,340.36

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Solution

The fourth proportional to 519,153.80, 716,585.46 and 304,340.36 is: 420,079.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,153.80 : 716,585.46 = 304,340.36 : x
  2. Step 2: Convert to fraction form
    519,153.80/716,585.46 = 304,340.36/x
  3. Step 3: Cross multiply
    519,153.80x = 716,585.46 × 304,340.36
  4. Step 4: Simplify right side
    519,153.80x = 218,085,876,867.17
  5. Step 5: Solve for x
    x = 218,085,876,867.17/519,153.80
  6. Step 6: Final answer
    x = 420,079.52

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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.