Home / 686,789.68-1,030,168.80-181,386.28

Finding the Fourth Proportional to 686,789.68, 1,030,168.80 and 181,386.28

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Solution

The fourth proportional to 686,789.68, 1,030,168.80 and 181,386.28 is: 272,075.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,789.68 : 1,030,168.80 = 181,386.28 : x
  2. Step 2: Convert to fraction form
    686,789.68/1,030,168.80 = 181,386.28/x
  3. Step 3: Cross multiply
    686,789.68x = 1,030,168.80 × 181,386.28
  4. Step 4: Simplify right side
    686,789.68x = 186,858,486,404.06
  5. Step 5: Solve for x
    x = 186,858,486,404.06/686,789.68
  6. Step 6: Final answer
    x = 272,075.27

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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.