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Finding the Fourth Proportional to 365,478.48, 547,366.14 and 355,389.12

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Solution

The fourth proportional to 365,478.48, 547,366.14 and 355,389.12 is: 532,255.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,478.48 : 547,366.14 = 355,389.12 : x
  2. Step 2: Convert to fraction form
    365,478.48/547,366.14 = 355,389.12/x
  3. Step 3: Cross multiply
    365,478.48x = 547,366.14 × 355,389.12
  4. Step 4: Simplify right side
    365,478.48x = 194,527,970,812.40
  5. Step 5: Solve for x
    x = 194,527,970,812.40/365,478.48
  6. Step 6: Final answer
    x = 532,255.61

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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.