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Finding the Fourth Proportional to 524,380.80, 786,686.40 and 169,334.40

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Solution

The fourth proportional to 524,380.80, 786,686.40 and 169,334.40 is: 254,038.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,380.80 : 786,686.40 = 169,334.40 : x
  2. Step 2: Convert to fraction form
    524,380.80/786,686.40 = 169,334.40/x
  3. Step 3: Cross multiply
    524,380.80x = 786,686.40 × 169,334.40
  4. Step 4: Simplify right side
    524,380.80x = 133,213,069,532.16
  5. Step 5: Solve for x
    x = 133,213,069,532.16/524,380.80
  6. Step 6: Final answer
    x = 254,038.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.