Home / 688,608.40-1,032,972.10-189,972.40

Finding the Fourth Proportional to 688,608.40, 1,032,972.10 and 189,972.40

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Solution

The fourth proportional to 688,608.40, 1,032,972.10 and 189,972.40 is: 284,975.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,608.40 : 1,032,972.10 = 189,972.40 : x
  2. Step 2: Convert to fraction form
    688,608.40/1,032,972.10 = 189,972.40/x
  3. Step 3: Cross multiply
    688,608.40x = 1,032,972.10 × 189,972.40
  4. Step 4: Simplify right side
    688,608.40x = 196,236,188,970.04
  5. Step 5: Solve for x
    x = 196,236,188,970.04/688,608.40
  6. Step 6: Final answer
    x = 284,975.01

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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.