Home / 688,512.80-1,032,769.20-618,528.80

Finding the Fourth Proportional to 688,512.80, 1,032,769.20 and 618,528.80

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Solution

The fourth proportional to 688,512.80, 1,032,769.20 and 618,528.80 is: 927,793.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,512.80 : 1,032,769.20 = 618,528.80 : x
  2. Step 2: Convert to fraction form
    688,512.80/1,032,769.20 = 618,528.80/x
  3. Step 3: Cross multiply
    688,512.80x = 1,032,769.20 × 618,528.80
  4. Step 4: Simplify right side
    688,512.80x = 638,797,493,952.96
  5. Step 5: Solve for x
    x = 638,797,493,952.96/688,512.80
  6. Step 6: Final answer
    x = 927,793.20

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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.