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Finding the Fourth Proportional to 519,905.52, 717,459.12 and 293,546.16

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Solution

The fourth proportional to 519,905.52, 717,459.12 and 293,546.16 is: 405,087.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,905.52 : 717,459.12 = 293,546.16 : x
  2. Step 2: Convert to fraction form
    519,905.52/717,459.12 = 293,546.16/x
  3. Step 3: Cross multiply
    519,905.52x = 717,459.12 × 293,546.16
  4. Step 4: Simplify right side
    519,905.52x = 210,607,369,632.98
  5. Step 5: Solve for x
    x = 210,607,369,632.98/519,905.52
  6. Step 6: Final answer
    x = 405,087.77

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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.