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Finding the Fourth Proportional to 402,483.36, 555,394.50 and 232,728.42

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Solution

The fourth proportional to 402,483.36, 555,394.50 and 232,728.42 is: 321,146.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,483.36 : 555,394.50 = 232,728.42 : x
  2. Step 2: Convert to fraction form
    402,483.36/555,394.50 = 232,728.42/x
  3. Step 3: Cross multiply
    402,483.36x = 555,394.50 × 232,728.42
  4. Step 4: Simplify right side
    402,483.36x = 129,256,084,461.69
  5. Step 5: Solve for x
    x = 129,256,084,461.69/402,483.36
  6. Step 6: Final answer
    x = 321,146.41

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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.