Home / 714,289.83-985,439.37-408,202.01

Finding the Fourth Proportional to 714,289.83, 985,439.37 and 408,202.01

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Solution

The fourth proportional to 714,289.83, 985,439.37 and 408,202.01 is: 563,158.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,289.83 : 985,439.37 = 408,202.01 : x
  2. Step 2: Convert to fraction form
    714,289.83/985,439.37 = 408,202.01/x
  3. Step 3: Cross multiply
    714,289.83x = 985,439.37 × 408,202.01
  4. Step 4: Simplify right side
    714,289.83x = 402,258,331,866.09
  5. Step 5: Solve for x
    x = 402,258,331,866.09/714,289.83
  6. Step 6: Final answer
    x = 563,158.42

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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.