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Finding the Fourth Proportional to 499,163.77, 688,968.39 and 284,430.34

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Solution

The fourth proportional to 499,163.77, 688,968.39 and 284,430.34 is: 392,583.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,163.77 : 688,968.39 = 284,430.34 : x
  2. Step 2: Convert to fraction form
    499,163.77/688,968.39 = 284,430.34/x
  3. Step 3: Cross multiply
    499,163.77x = 688,968.39 × 284,430.34
  4. Step 4: Simplify right side
    499,163.77x = 195,963,513,416.95
  5. Step 5: Solve for x
    x = 195,963,513,416.95/499,163.77
  6. Step 6: Final answer
    x = 392,583.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.