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Finding the Fourth Proportional to 519,165.90, 716,313.52 and 304,190.46

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Solution

The fourth proportional to 519,165.90, 716,313.52 and 304,190.46 is: 419,703.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,165.90 : 716,313.52 = 304,190.46 : x
  2. Step 2: Convert to fraction form
    519,165.90/716,313.52 = 304,190.46/x
  3. Step 3: Cross multiply
    519,165.90x = 716,313.52 × 304,190.46
  4. Step 4: Simplify right side
    519,165.90x = 217,895,739,153.02
  5. Step 5: Solve for x
    x = 217,895,739,153.02/519,165.90
  6. Step 6: Final answer
    x = 419,703.49

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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.