Home / 945,800.64-1,418,685.91-440,078.76

Finding the Fourth Proportional to 945,800.64, 1,418,685.91 and 440,078.76

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Solution

The fourth proportional to 945,800.64, 1,418,685.91 and 440,078.76 is: 660,111.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,800.64 : 1,418,685.91 = 440,078.76 : x
  2. Step 2: Convert to fraction form
    945,800.64/1,418,685.91 = 440,078.76/x
  3. Step 3: Cross multiply
    945,800.64x = 1,418,685.91 × 440,078.76
  4. Step 4: Simplify right side
    945,800.64x = 624,333,535,002.08
  5. Step 5: Solve for x
    x = 624,333,535,002.08/945,800.64
  6. Step 6: Final answer
    x = 660,111.14

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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.