Home / 777,345.91-1,072,166.33-515,227.16

Finding the Fourth Proportional to 777,345.91, 1,072,166.33 and 515,227.16

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Solution

The fourth proportional to 777,345.91, 1,072,166.33 and 515,227.16 is: 710,635.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,345.91 : 1,072,166.33 = 515,227.16 : x
  2. Step 2: Convert to fraction form
    777,345.91/1,072,166.33 = 515,227.16/x
  3. Step 3: Cross multiply
    777,345.91x = 1,072,166.33 × 515,227.16
  4. Step 4: Simplify right side
    777,345.91x = 552,409,217,222.01
  5. Step 5: Solve for x
    x = 552,409,217,222.01/777,345.91
  6. Step 6: Final answer
    x = 710,635.01

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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.