Home / 999,445.28-1,379,230.36-540,560.36

Finding the Fourth Proportional to 999,445.28, 1,379,230.36 and 540,560.36

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Solution

The fourth proportional to 999,445.28, 1,379,230.36 and 540,560.36 is: 745,971.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,445.28 : 1,379,230.36 = 540,560.36 : x
  2. Step 2: Convert to fraction form
    999,445.28/1,379,230.36 = 540,560.36/x
  3. Step 3: Cross multiply
    999,445.28x = 1,379,230.36 × 540,560.36
  4. Step 4: Simplify right side
    999,445.28x = 745,557,259,924.53
  5. Step 5: Solve for x
    x = 745,557,259,924.53/999,445.28
  6. Step 6: Final answer
    x = 745,971.06

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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.