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Finding the Fourth Proportional to 523,430.77, 781,600.43 and 415,604.84

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Solution

The fourth proportional to 523,430.77, 781,600.43 and 415,604.84 is: 620,591.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,430.77 : 781,600.43 = 415,604.84 : x
  2. Step 2: Convert to fraction form
    523,430.77/781,600.43 = 415,604.84/x
  3. Step 3: Cross multiply
    523,430.77x = 781,600.43 × 415,604.84
  4. Step 4: Simplify right side
    523,430.77x = 324,836,916,962.00
  5. Step 5: Solve for x
    x = 324,836,916,962.00/523,430.77
  6. Step 6: Final answer
    x = 620,591.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.