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Finding the Fourth Proportional to 524,428.20, 786,642.30 and 192,133.80

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Solution

The fourth proportional to 524,428.20, 786,642.30 and 192,133.80 is: 288,200.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,428.20 : 786,642.30 = 192,133.80 : x
  2. Step 2: Convert to fraction form
    524,428.20/786,642.30 = 192,133.80/x
  3. Step 3: Cross multiply
    524,428.20x = 786,642.30 × 192,133.80
  4. Step 4: Simplify right side
    524,428.20x = 151,140,574,339.74
  5. Step 5: Solve for x
    x = 151,140,574,339.74/524,428.20
  6. Step 6: Final answer
    x = 288,200.70

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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.