Home / 999,443.28-1,379,227.60-540,558.36

Finding the Fourth Proportional to 999,443.28, 1,379,227.60 and 540,558.36

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Solution

The fourth proportional to 999,443.28, 1,379,227.60 and 540,558.36 is: 745,968.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,443.28 : 1,379,227.60 = 540,558.36 : x
  2. Step 2: Convert to fraction form
    999,443.28/1,379,227.60 = 540,558.36/x
  3. Step 3: Cross multiply
    999,443.28x = 1,379,227.60 × 540,558.36
  4. Step 4: Simplify right side
    999,443.28x = 745,553,009,522.74
  5. Step 5: Solve for x
    x = 745,553,009,522.74/999,443.28
  6. Step 6: Final answer
    x = 745,968.30

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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.