Home / 794,420.10-1,192,140.45-439,688.70

Finding the Fourth Proportional to 794,420.10, 1,192,140.45 and 439,688.70

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Solution

The fourth proportional to 794,420.10, 1,192,140.45 and 439,688.70 is: 659,815.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    794,420.10 : 1,192,140.45 = 439,688.70 : x
  2. Step 2: Convert to fraction form
    794,420.10/1,192,140.45 = 439,688.70/x
  3. Step 3: Cross multiply
    794,420.10x = 1,192,140.45 × 439,688.70
  4. Step 4: Simplify right side
    794,420.10x = 524,170,684,677.92
  5. Step 5: Solve for x
    x = 524,170,684,677.92/794,420.10
  6. Step 6: Final answer
    x = 659,815.49

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Double scale
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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.