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Finding the Fourth Proportional to 384,593.01, 530,393.59 and 320,275.22

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Solution

The fourth proportional to 384,593.01, 530,393.59 and 320,275.22 is: 441,692.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,593.01 : 530,393.59 = 320,275.22 : x
  2. Step 2: Convert to fraction form
    384,593.01/530,393.59 = 320,275.22/x
  3. Step 3: Cross multiply
    384,593.01x = 530,393.59 × 320,275.22
  4. Step 4: Simplify right side
    384,593.01x = 169,871,923,723.84
  5. Step 5: Solve for x
    x = 169,871,923,723.84/384,593.01
  6. Step 6: Final answer
    x = 441,692.70

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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.