Home / 1,931,311.64-2,897,078.10-511,330.76

Finding the Fourth Proportional to 1,931,311.64, 2,897,078.10 and 511,330.76

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Solution

The fourth proportional to 1,931,311.64, 2,897,078.10 and 511,330.76 is: 767,025.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,931,311.64 : 2,897,078.10 = 511,330.76 : x
  2. Step 2: Convert to fraction form
    1,931,311.64/2,897,078.10 = 511,330.76/x
  3. Step 3: Cross multiply
    1,931,311.64x = 2,897,078.10 × 511,330.76
  4. Step 4: Simplify right side
    1,931,311.64x = 1,481,365,146,652.36
  5. Step 5: Solve for x
    x = 1,481,365,146,652.36/1,931,311.64
  6. Step 6: Final answer
    x = 767,025.43

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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.