Home / 928,473.40-1,392,710.10-263,625.40

Finding the Fourth Proportional to 928,473.40, 1,392,710.10 and 263,625.40

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Solution

The fourth proportional to 928,473.40, 1,392,710.10 and 263,625.40 is: 395,438.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,473.40 : 1,392,710.10 = 263,625.40 : x
  2. Step 2: Convert to fraction form
    928,473.40/1,392,710.10 = 263,625.40/x
  3. Step 3: Cross multiply
    928,473.40x = 1,392,710.10 × 263,625.40
  4. Step 4: Simplify right side
    928,473.40x = 367,153,757,196.54
  5. Step 5: Solve for x
    x = 367,153,757,196.54/928,473.40
  6. Step 6: Final answer
    x = 395,438.10

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Double scale
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Similar ratio
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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.