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Finding the Fourth Proportional to 545,219.71, 817,771.24 and 190,240.45

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Solution

The fourth proportional to 545,219.71, 817,771.24 and 190,240.45 is: 285,340.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,219.71 : 817,771.24 = 190,240.45 : x
  2. Step 2: Convert to fraction form
    545,219.71/817,771.24 = 190,240.45/x
  3. Step 3: Cross multiply
    545,219.71x = 817,771.24 × 190,240.45
  4. Step 4: Simplify right side
    545,219.71x = 155,573,166,888.03
  5. Step 5: Solve for x
    x = 155,573,166,888.03/545,219.71
  6. Step 6: Final answer
    x = 285,340.32

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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.