Home / 656,220.18-984,412.35-256,809.36

Finding the Fourth Proportional to 656,220.18, 984,412.35 and 256,809.36

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Solution

The fourth proportional to 656,220.18, 984,412.35 and 256,809.36 is: 385,246.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,220.18 : 984,412.35 = 256,809.36 : x
  2. Step 2: Convert to fraction form
    656,220.18/984,412.35 = 256,809.36/x
  3. Step 3: Cross multiply
    656,220.18x = 984,412.35 × 256,809.36
  4. Step 4: Simplify right side
    656,220.18x = 252,806,305,579.60
  5. Step 5: Solve for x
    x = 252,806,305,579.60/656,220.18
  6. Step 6: Final answer
    x = 385,246.16

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1.5x scale

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.