Home / 838,432.40-1,256,858.04-417,310.16

Finding the Fourth Proportional to 838,432.40, 1,256,858.04 and 417,310.16

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Solution

The fourth proportional to 838,432.40, 1,256,858.04 and 417,310.16 is: 625,571.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,432.40 : 1,256,858.04 = 417,310.16 : x
  2. Step 2: Convert to fraction form
    838,432.40/1,256,858.04 = 417,310.16/x
  3. Step 3: Cross multiply
    838,432.40x = 1,256,858.04 × 417,310.16
  4. Step 4: Simplify right side
    838,432.40x = 524,499,629,769.69
  5. Step 5: Solve for x
    x = 524,499,629,769.69/838,432.40
  6. Step 6: Final answer
    x = 625,571.76

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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.