Home / 1,918,709.20-2,877,286.20-655,886.80

Finding the Fourth Proportional to 1,918,709.20, 2,877,286.20 and 655,886.80

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Solution

The fourth proportional to 1,918,709.20, 2,877,286.20 and 655,886.80 is: 983,564.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,918,709.20 : 2,877,286.20 = 655,886.80 : x
  2. Step 2: Convert to fraction form
    1,918,709.20/2,877,286.20 = 655,886.80/x
  3. Step 3: Cross multiply
    1,918,709.20x = 2,877,286.20 × 655,886.80
  4. Step 4: Simplify right side
    1,918,709.20x = 1,887,174,038,402.16
  5. Step 5: Solve for x
    x = 1,887,174,038,402.16/1,918,709.20
  6. Step 6: Final answer
    x = 983,564.39

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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.