Home / 835,840.15-1,252,885.25-349,800.78

Finding the Fourth Proportional to 835,840.15, 1,252,885.25 and 349,800.78

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Solution

The fourth proportional to 835,840.15, 1,252,885.25 and 349,800.78 is: 524,334.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,840.15 : 1,252,885.25 = 349,800.78 : x
  2. Step 2: Convert to fraction form
    835,840.15/1,252,885.25 = 349,800.78/x
  3. Step 3: Cross multiply
    835,840.15x = 1,252,885.25 × 349,800.78
  4. Step 4: Simplify right side
    835,840.15x = 438,260,237,700.50
  5. Step 5: Solve for x
    x = 438,260,237,700.50/835,840.15
  6. Step 6: Final answer
    x = 524,334.99

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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.