Home / 919,521.86-1,268,927.98-517,113.86

Finding the Fourth Proportional to 919,521.86, 1,268,927.98 and 517,113.86

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Solution

The fourth proportional to 919,521.86, 1,268,927.98 and 517,113.86 is: 713,610.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,521.86 : 1,268,927.98 = 517,113.86 : x
  2. Step 2: Convert to fraction form
    919,521.86/1,268,927.98 = 517,113.86/x
  3. Step 3: Cross multiply
    919,521.86x = 1,268,927.98 × 517,113.86
  4. Step 4: Simplify right side
    919,521.86x = 656,180,238,162.38
  5. Step 5: Solve for x
    x = 656,180,238,162.38/919,521.86
  6. Step 6: Final answer
    x = 713,610.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.