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Finding the Fourth Proportional to 356,502.60, 534,393.85 and 223,476.09

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Solution

The fourth proportional to 356,502.60, 534,393.85 and 223,476.09 is: 334,988.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,502.60 : 534,393.85 = 223,476.09 : x
  2. Step 2: Convert to fraction form
    356,502.60/534,393.85 = 223,476.09/x
  3. Step 3: Cross multiply
    356,502.60x = 534,393.85 × 223,476.09
  4. Step 4: Simplify right side
    356,502.60x = 119,424,248,118.05
  5. Step 5: Solve for x
    x = 119,424,248,118.05/356,502.60
  6. Step 6: Final answer
    x = 334,988.44

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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.