Home / 388,938.36-583,407.54-122,725.83

Finding the Fourth Proportional to 388,938.36, 583,407.54 and 122,725.83

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Solution

The fourth proportional to 388,938.36, 583,407.54 and 122,725.83 is: 184,088.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,938.36 : 583,407.54 = 122,725.83 : x
  2. Step 2: Convert to fraction form
    388,938.36/583,407.54 = 122,725.83/x
  3. Step 3: Cross multiply
    388,938.36x = 583,407.54 × 122,725.83
  4. Step 4: Simplify right side
    388,938.36x = 71,599,174,574.76
  5. Step 5: Solve for x
    x = 71,599,174,574.76/388,938.36
  6. Step 6: Final answer
    x = 184,088.75

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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.