Home / 1,276,829.41-1,911,865.17-770,713.87

Finding the Fourth Proportional to 1,276,829.41, 1,911,865.17 and 770,713.87

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Solution

The fourth proportional to 1,276,829.41, 1,911,865.17 and 770,713.87 is: 1,154,031.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,829.41 : 1,911,865.17 = 770,713.87 : x
  2. Step 2: Convert to fraction form
    1,276,829.41/1,911,865.17 = 770,713.87/x
  3. Step 3: Cross multiply
    1,276,829.41x = 1,911,865.17 × 770,713.87
  4. Step 4: Simplify right side
    1,276,829.41x = 1,473,501,004,088.91
  5. Step 5: Solve for x
    x = 1,473,501,004,088.91/1,276,829.41
  6. Step 6: Final answer
    x = 1,154,031.22

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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.