Home / 698,623.20-1,047,934.80-199,987.20

Finding the Fourth Proportional to 698,623.20, 1,047,934.80 and 199,987.20

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Solution

The fourth proportional to 698,623.20, 1,047,934.80 and 199,987.20 is: 299,980.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,623.20 : 1,047,934.80 = 199,987.20 : x
  2. Step 2: Convert to fraction form
    698,623.20/1,047,934.80 = 199,987.20/x
  3. Step 3: Cross multiply
    698,623.20x = 1,047,934.80 × 199,987.20
  4. Step 4: Simplify right side
    698,623.20x = 209,573,546,434.56
  5. Step 5: Solve for x
    x = 209,573,546,434.56/698,623.20
  6. Step 6: Final answer
    x = 299,980.80

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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.