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Finding the Fourth Proportional to 356,505.72, 534,398.54 and 223,479.23

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Solution

The fourth proportional to 356,505.72, 534,398.54 and 223,479.23 is: 334,993.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,505.72 : 534,398.54 = 223,479.23 : x
  2. Step 2: Convert to fraction form
    356,505.72/534,398.54 = 223,479.23/x
  3. Step 3: Cross multiply
    356,505.72x = 534,398.54 × 223,479.23
  4. Step 4: Simplify right side
    356,505.72x = 119,426,970,442.94
  5. Step 5: Solve for x
    x = 119,426,970,442.94/356,505.72
  6. Step 6: Final answer
    x = 334,993.14

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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.