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Finding the Fourth Proportional to 284,616.69, 426,924.61 and 74,254.63

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Solution

The fourth proportional to 284,616.69, 426,924.61 and 74,254.63 is: 111,381.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,616.69 : 426,924.61 = 74,254.63 : x
  2. Step 2: Convert to fraction form
    284,616.69/426,924.61 = 74,254.63/x
  3. Step 3: Cross multiply
    284,616.69x = 426,924.61 × 74,254.63
  4. Step 4: Simplify right side
    284,616.69x = 31,701,128,953.44
  5. Step 5: Solve for x
    x = 31,701,128,953.44/284,616.69
  6. Step 6: Final answer
    x = 111,381.83

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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.