Home / 776,864.15-1,071,215.67-531,889.22

Finding the Fourth Proportional to 776,864.15, 1,071,215.67 and 531,889.22

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Solution

The fourth proportional to 776,864.15, 1,071,215.67 and 531,889.22 is: 733,420.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,864.15 : 1,071,215.67 = 531,889.22 : x
  2. Step 2: Convert to fraction form
    776,864.15/1,071,215.67 = 531,889.22/x
  3. Step 3: Cross multiply
    776,864.15x = 1,071,215.67 × 531,889.22
  4. Step 4: Simplify right side
    776,864.15x = 569,768,066,220.46
  5. Step 5: Solve for x
    x = 569,768,066,220.46/776,864.15
  6. Step 6: Final answer
    x = 733,420.47

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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.