Home / 805,440.40-1,206,778.20-524,813.20

Finding the Fourth Proportional to 805,440.40, 1,206,778.20 and 524,813.20

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Solution

The fourth proportional to 805,440.40, 1,206,778.20 and 524,813.20 is: 786,319.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,440.40 : 1,206,778.20 = 524,813.20 : x
  2. Step 2: Convert to fraction form
    805,440.40/1,206,778.20 = 524,813.20/x
  3. Step 3: Cross multiply
    805,440.40x = 1,206,778.20 × 524,813.20
  4. Step 4: Simplify right side
    805,440.40x = 633,333,128,832.24
  5. Step 5: Solve for x
    x = 633,333,128,832.24/805,440.40
  6. Step 6: Final answer
    x = 786,319.05

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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.