Home / 656,021.20-983,417.40-513,787.60

Finding the Fourth Proportional to 656,021.20, 983,417.40 and 513,787.60

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Solution

The fourth proportional to 656,021.20, 983,417.40 and 513,787.60 is: 770,200.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,021.20 : 983,417.40 = 513,787.60 : x
  2. Step 2: Convert to fraction form
    656,021.20/983,417.40 = 513,787.60/x
  3. Step 3: Cross multiply
    656,021.20x = 983,417.40 × 513,787.60
  4. Step 4: Simplify right side
    656,021.20x = 505,267,665,744.24
  5. Step 5: Solve for x
    x = 505,267,665,744.24/656,021.20
  6. Step 6: Final answer
    x = 770,200.21

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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.