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Finding the Fourth Proportional to 519,208.89, 716,517.59 and 304,503.81

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Solution

The fourth proportional to 519,208.89, 716,517.59 and 304,503.81 is: 420,220.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,208.89 : 716,517.59 = 304,503.81 : x
  2. Step 2: Convert to fraction form
    519,208.89/716,517.59 = 304,503.81/x
  3. Step 3: Cross multiply
    519,208.89x = 716,517.59 × 304,503.81
  4. Step 4: Simplify right side
    519,208.89x = 218,182,336,087.02
  5. Step 5: Solve for x
    x = 218,182,336,087.02/519,208.89
  6. Step 6: Final answer
    x = 420,220.72

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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.