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Finding the Fourth Proportional to 566,353.24, 781,572.99 and 311,710.30

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Solution

The fourth proportional to 566,353.24, 781,572.99 and 311,710.30 is: 430,163.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,353.24 : 781,572.99 = 311,710.30 : x
  2. Step 2: Convert to fraction form
    566,353.24/781,572.99 = 311,710.30/x
  3. Step 3: Cross multiply
    566,353.24x = 781,572.99 × 311,710.30
  4. Step 4: Simplify right side
    566,353.24x = 243,624,351,184.80
  5. Step 5: Solve for x
    x = 243,624,351,184.80/566,353.24
  6. Step 6: Final answer
    x = 430,163.25

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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.