Home / 824,940.72-1,138,167.52-519,322.19

Finding the Fourth Proportional to 824,940.72, 1,138,167.52 and 519,322.19

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Solution

The fourth proportional to 824,940.72, 1,138,167.52 and 519,322.19 is: 716,506.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,940.72 : 1,138,167.52 = 519,322.19 : x
  2. Step 2: Convert to fraction form
    824,940.72/1,138,167.52 = 519,322.19/x
  3. Step 3: Cross multiply
    824,940.72x = 1,138,167.52 × 519,322.19
  4. Step 4: Simplify right side
    824,940.72x = 591,075,642,084.13
  5. Step 5: Solve for x
    x = 591,075,642,084.13/824,940.72
  6. Step 6: Final answer
    x = 716,506.81

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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.