Home / 702,076.61-1,053,705.71-657,789.86

Finding the Fourth Proportional to 702,076.61, 1,053,705.71 and 657,789.86

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Solution

The fourth proportional to 702,076.61, 1,053,705.71 and 657,789.86 is: 987,238.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,076.61 : 1,053,705.71 = 657,789.86 : x
  2. Step 2: Convert to fraction form
    702,076.61/1,053,705.71 = 657,789.86/x
  3. Step 3: Cross multiply
    702,076.61x = 1,053,705.71 × 657,789.86
  4. Step 4: Simplify right side
    702,076.61x = 693,116,935,740.84
  5. Step 5: Solve for x
    x = 693,116,935,740.84/702,076.61
  6. Step 6: Final answer
    x = 987,238.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.