Home / 1,931,920.20-2,897,750.70-511,945.80

Finding the Fourth Proportional to 1,931,920.20, 2,897,750.70 and 511,945.80

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Solution

The fourth proportional to 1,931,920.20, 2,897,750.70 and 511,945.80 is: 767,884.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,931,920.20 : 2,897,750.70 = 511,945.80 : x
  2. Step 2: Convert to fraction form
    1,931,920.20/2,897,750.70 = 511,945.80/x
  3. Step 3: Cross multiply
    1,931,920.20x = 2,897,750.70 × 511,945.80
  4. Step 4: Simplify right side
    1,931,920.20x = 1,483,491,300,312.06
  5. Step 5: Solve for x
    x = 1,483,491,300,312.06/1,931,920.20
  6. Step 6: Final answer
    x = 767,884.36

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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.