Home / 885,065.78-1,221,584.17-562,712.91

Finding the Fourth Proportional to 885,065.78, 1,221,584.17 and 562,712.91

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Solution

The fourth proportional to 885,065.78, 1,221,584.17 and 562,712.91 is: 776,666.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,065.78 : 1,221,584.17 = 562,712.91 : x
  2. Step 2: Convert to fraction form
    885,065.78/1,221,584.17 = 562,712.91/x
  3. Step 3: Cross multiply
    885,065.78x = 1,221,584.17 × 562,712.91
  4. Step 4: Simplify right side
    885,065.78x = 687,401,183,110.64
  5. Step 5: Solve for x
    x = 687,401,183,110.64/885,065.78
  6. Step 6: Final answer
    x = 776,666.77

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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.