Home / 545,941.70-819,787.35-412,972.10

Finding the Fourth Proportional to 545,941.70, 819,787.35 and 412,972.10

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Solution

The fourth proportional to 545,941.70, 819,787.35 and 412,972.10 is: 620,119.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,941.70 : 819,787.35 = 412,972.10 : x
  2. Step 2: Convert to fraction form
    545,941.70/819,787.35 = 412,972.10/x
  3. Step 3: Cross multiply
    545,941.70x = 819,787.35 × 412,972.10
  4. Step 4: Simplify right side
    545,941.70x = 338,549,303,482.94
  5. Step 5: Solve for x
    x = 338,549,303,482.94/545,941.70
  6. Step 6: Final answer
    x = 620,119.88

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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.