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Finding the Fourth Proportional to 545,061.66, 817,596.14 and 190,074.30

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Solution

The fourth proportional to 545,061.66, 817,596.14 and 190,074.30 is: 285,112.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,061.66 : 817,596.14 = 190,074.30 : x
  2. Step 2: Convert to fraction form
    545,061.66/817,596.14 = 190,074.30/x
  3. Step 3: Cross multiply
    545,061.66x = 817,596.14 × 190,074.30
  4. Step 4: Simplify right side
    545,061.66x = 155,404,013,042.83
  5. Step 5: Solve for x
    x = 155,404,013,042.83/545,061.66
  6. Step 6: Final answer
    x = 285,112.72

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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.