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Finding the Fourth Proportional to 554,456.29, 765,454.33 and 361,032.54

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Solution

The fourth proportional to 554,456.29, 765,454.33 and 361,032.54 is: 498,423.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,456.29 : 765,454.33 = 361,032.54 : x
  2. Step 2: Convert to fraction form
    554,456.29/765,454.33 = 361,032.54/x
  3. Step 3: Cross multiply
    554,456.29x = 765,454.33 × 361,032.54
  4. Step 4: Simplify right side
    554,456.29x = 276,353,921,885.01
  5. Step 5: Solve for x
    x = 276,353,921,885.01/554,456.29
  6. Step 6: Final answer
    x = 498,423.28

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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.