Home / 640,939.23-882,471.51-564,406.38

Finding the Fourth Proportional to 640,939.23, 882,471.51 and 564,406.38

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Solution

The fourth proportional to 640,939.23, 882,471.51 and 564,406.38 is: 777,097.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,939.23 : 882,471.51 = 564,406.38 : x
  2. Step 2: Convert to fraction form
    640,939.23/882,471.51 = 564,406.38/x
  3. Step 3: Cross multiply
    640,939.23x = 882,471.51 × 564,406.38
  4. Step 4: Simplify right side
    640,939.23x = 498,072,550,412.23
  5. Step 5: Solve for x
    x = 498,072,550,412.23/640,939.23
  6. Step 6: Final answer
    x = 777,097.93

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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.