Home / 821,345.75-1,232,510.15-354,401.75

Finding the Fourth Proportional to 821,345.75, 1,232,510.15 and 354,401.75

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Solution

The fourth proportional to 821,345.75, 1,232,510.15 and 354,401.75 is: 531,814.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,345.75 : 1,232,510.15 = 354,401.75 : x
  2. Step 2: Convert to fraction form
    821,345.75/1,232,510.15 = 354,401.75/x
  3. Step 3: Cross multiply
    821,345.75x = 1,232,510.15 × 354,401.75
  4. Step 4: Simplify right side
    821,345.75x = 436,803,752,280.75
  5. Step 5: Solve for x
    x = 436,803,752,280.75/821,345.75
  6. Step 6: Final answer
    x = 531,814.71

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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.