Home / 656,112.36-905,454.25-384,154.81

Finding the Fourth Proportional to 656,112.36, 905,454.25 and 384,154.81

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Solution

The fourth proportional to 656,112.36, 905,454.25 and 384,154.81 is: 530,144.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,112.36 : 905,454.25 = 384,154.81 : x
  2. Step 2: Convert to fraction form
    656,112.36/905,454.25 = 384,154.81/x
  3. Step 3: Cross multiply
    656,112.36x = 905,454.25 × 384,154.81
  4. Step 4: Simplify right side
    656,112.36x = 347,834,606,984.45
  5. Step 5: Solve for x
    x = 347,834,606,984.45/656,112.36
  6. Step 6: Final answer
    x = 530,144.87

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1.5x scale

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.