Home / 883,513.17-1,219,220.91-520,959.60

Finding the Fourth Proportional to 883,513.17, 1,219,220.91 and 520,959.60

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Solution

The fourth proportional to 883,513.17, 1,219,220.91 and 520,959.60 is: 718,908.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    883,513.17 : 1,219,220.91 = 520,959.60 : x
  2. Step 2: Convert to fraction form
    883,513.17/1,219,220.91 = 520,959.60/x
  3. Step 3: Cross multiply
    883,513.17x = 1,219,220.91 × 520,959.60
  4. Step 4: Simplify right side
    883,513.17x = 635,164,837,585.24
  5. Step 5: Solve for x
    x = 635,164,837,585.24/883,513.17
  6. Step 6: Final answer
    x = 718,908.17

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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.