Home / 689,871,533.55-952,026,583.19-392,513,768.52

Finding the Fourth Proportional to 689,871,533.55, 952,026,583.19 and 392,513,768.52

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Solution

The fourth proportional to 689,871,533.55, 952,026,583.19 and 392,513,768.52 is: 541,671,200.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,871,533.55 : 952,026,583.19 = 392,513,768.52 : x
  2. Step 2: Convert to fraction form
    689,871,533.55/952,026,583.19 = 392,513,768.52/x
  3. Step 3: Cross multiply
    689,871,533.55x = 952,026,583.19 × 392,513,768.52
  4. Step 4: Simplify right side
    689,871,533.55x = 373,683,541,897,163,584
  5. Step 5: Solve for x
    x = 373,683,541,897,163,584/689,871,533.55
  6. Step 6: Final answer
    x = 541,671,200.69

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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.