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Finding the Fourth Proportional to 343,987.48, 474,927.54 and 223,472.23

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Solution

The fourth proportional to 343,987.48, 474,927.54 and 223,472.23 is: 308,537.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,987.48 : 474,927.54 = 223,472.23 : x
  2. Step 2: Convert to fraction form
    343,987.48/474,927.54 = 223,472.23/x
  3. Step 3: Cross multiply
    343,987.48x = 474,927.54 × 223,472.23
  4. Step 4: Simplify right side
    343,987.48x = 106,133,116,452.21
  5. Step 5: Solve for x
    x = 106,133,116,452.21/343,987.48
  6. Step 6: Final answer
    x = 308,537.73

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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.