Home / 803,189.57-1,108,395.12-435,665.78

Finding the Fourth Proportional to 803,189.57, 1,108,395.12 and 435,665.78

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Solution

The fourth proportional to 803,189.57, 1,108,395.12 and 435,665.78 is: 601,215.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,189.57 : 1,108,395.12 = 435,665.78 : x
  2. Step 2: Convert to fraction form
    803,189.57/1,108,395.12 = 435,665.78/x
  3. Step 3: Cross multiply
    803,189.57x = 1,108,395.12 × 435,665.78
  4. Step 4: Simplify right side
    803,189.57x = 482,889,818,961.02
  5. Step 5: Solve for x
    x = 482,889,818,961.02/803,189.57
  6. Step 6: Final answer
    x = 601,215.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.