Home / 689,871,534.30-952,026,584.22-392,513,769.36

Finding the Fourth Proportional to 689,871,534.30, 952,026,584.22 and 392,513,769.36

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Solution

The fourth proportional to 689,871,534.30, 952,026,584.22 and 392,513,769.36 is: 541,671,201.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,871,534.30 : 952,026,584.22 = 392,513,769.36 : x
  2. Step 2: Convert to fraction form
    689,871,534.30/952,026,584.22 = 392,513,769.36/x
  3. Step 3: Cross multiply
    689,871,534.30x = 952,026,584.22 × 392,513,769.36
  4. Step 4: Simplify right side
    689,871,534.30x = 373,683,543,103,117,696
  5. Step 5: Solve for x
    x = 373,683,543,103,117,696/689,871,534.30
  6. Step 6: Final answer
    x = 541,671,201.85

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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.