Home / 656,113.37-905,455.63-384,155.81

Finding the Fourth Proportional to 656,113.37, 905,455.63 and 384,155.81

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Solution

The fourth proportional to 656,113.37, 905,455.63 and 384,155.81 is: 530,146.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,113.37 : 905,455.63 = 384,155.81 : x
  2. Step 2: Convert to fraction form
    656,113.37/905,455.63 = 384,155.81/x
  3. Step 3: Cross multiply
    656,113.37x = 905,455.63 × 384,155.81
  4. Step 4: Simplify right side
    656,113.37x = 347,836,040,961.71
  5. Step 5: Solve for x
    x = 347,836,040,961.71/656,113.37
  6. Step 6: Final answer
    x = 530,146.25

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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.