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Finding the Fourth Proportional to 545,340.29, 818,384.11 and 190,354.28

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Solution

The fourth proportional to 545,340.29, 818,384.11 and 190,354.28 is: 285,661.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,340.29 : 818,384.11 = 190,354.28 : x
  2. Step 2: Convert to fraction form
    545,340.29/818,384.11 = 190,354.28/x
  3. Step 3: Cross multiply
    545,340.29x = 818,384.11 × 190,354.28
  4. Step 4: Simplify right side
    545,340.29x = 155,782,913,454.69
  5. Step 5: Solve for x
    x = 155,782,913,454.69/545,340.29
  6. Step 6: Final answer
    x = 285,661.85

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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.