Home / 683,818.76-1,025,406.12-399,591.45

Finding the Fourth Proportional to 683,818.76, 1,025,406.12 and 399,591.45

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Solution

The fourth proportional to 683,818.76, 1,025,406.12 and 399,591.45 is: 599,199.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,818.76 : 1,025,406.12 = 399,591.45 : x
  2. Step 2: Convert to fraction form
    683,818.76/1,025,406.12 = 399,591.45/x
  3. Step 3: Cross multiply
    683,818.76x = 1,025,406.12 × 399,591.45
  4. Step 4: Simplify right side
    683,818.76x = 409,743,518,329.67
  5. Step 5: Solve for x
    x = 409,743,518,329.67/683,818.76
  6. Step 6: Final answer
    x = 599,199.01

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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.