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Finding the Fourth Proportional to 1,979,602.40, 2,969,500.80 and 1,034,818.40

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Solution

The fourth proportional to 1,979,602.40, 2,969,500.80 and 1,034,818.40 is: 1,552,278.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979,602.40 : 2,969,500.80 = 1,034,818.40 : x
  2. Step 2: Convert to fraction form
    1,979,602.40/2,969,500.80 = 1,034,818.40/x
  3. Step 3: Cross multiply
    1,979,602.40x = 2,969,500.80 × 1,034,818.40
  4. Step 4: Simplify right side
    1,979,602.40x = 3,072,894,066,654.72
  5. Step 5: Solve for x
    x = 3,072,894,066,654.72/1,979,602.40
  6. Step 6: Final answer
    x = 1,552,278.41

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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.