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Finding the Fourth Proportional to 343,776.50, 474,402.48 and 190,814.28

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Solution

The fourth proportional to 343,776.50, 474,402.48 and 190,814.28 is: 263,318.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,776.50 : 474,402.48 = 190,814.28 : x
  2. Step 2: Convert to fraction form
    343,776.50/474,402.48 = 190,814.28/x
  3. Step 3: Cross multiply
    343,776.50x = 474,402.48 × 190,814.28
  4. Step 4: Simplify right side
    343,776.50x = 90,522,767,651.41
  5. Step 5: Solve for x
    x = 90,522,767,651.41/343,776.50
  6. Step 6: Final answer
    x = 263,318.66

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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.