Home / 805,909.20-1,207,481.40-384,277.20

Finding the Fourth Proportional to 805,909.20, 1,207,481.40 and 384,277.20

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Solution

The fourth proportional to 805,909.20, 1,207,481.40 and 384,277.20 is: 575,756.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,909.20 : 1,207,481.40 = 384,277.20 : x
  2. Step 2: Convert to fraction form
    805,909.20/1,207,481.40 = 384,277.20/x
  3. Step 3: Cross multiply
    805,909.20x = 1,207,481.40 × 384,277.20
  4. Step 4: Simplify right side
    805,909.20x = 464,007,571,444.08
  5. Step 5: Solve for x
    x = 464,007,571,444.08/805,909.20
  6. Step 6: Final answer
    x = 575,756.64

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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.