Home / 1,091,756.20-1,637,864.70-343,877.80

Finding the Fourth Proportional to 1,091,756.20, 1,637,864.70 and 343,877.80

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Solution

The fourth proportional to 1,091,756.20, 1,637,864.70 and 343,877.80 is: 515,889.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,756.20 : 1,637,864.70 = 343,877.80 : x
  2. Step 2: Convert to fraction form
    1,091,756.20/1,637,864.70 = 343,877.80/x
  3. Step 3: Cross multiply
    1,091,756.20x = 1,637,864.70 × 343,877.80
  4. Step 4: Simplify right side
    1,091,756.20x = 563,225,309,733.66
  5. Step 5: Solve for x
    x = 563,225,309,733.66/1,091,756.20
  6. Step 6: Final answer
    x = 515,889.27

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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.