Home / 919,562.13-1,379,541.72-279,915.88

Finding the Fourth Proportional to 919,562.13, 1,379,541.72 and 279,915.88

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Solution

The fourth proportional to 919,562.13, 1,379,541.72 and 279,915.88 is: 419,934.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,562.13 : 1,379,541.72 = 279,915.88 : x
  2. Step 2: Convert to fraction form
    919,562.13/1,379,541.72 = 279,915.88/x
  3. Step 3: Cross multiply
    919,562.13x = 1,379,541.72 × 279,915.88
  4. Step 4: Simplify right side
    919,562.13x = 386,155,634,550.51
  5. Step 5: Solve for x
    x = 386,155,634,550.51/919,562.13
  6. Step 6: Final answer
    x = 419,934.25

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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.