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Finding the Fourth Proportional to 6,518,734.80, 9,779,414.40 and 2,258,021.40

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Solution

The fourth proportional to 6,518,734.80, 9,779,414.40 and 2,258,021.40 is: 3,387,486.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,518,734.80 : 9,779,414.40 = 2,258,021.40 : x
  2. Step 2: Convert to fraction form
    6,518,734.80/9,779,414.40 = 2,258,021.40/x
  3. Step 3: Cross multiply
    6,518,734.80x = 9,779,414.40 × 2,258,021.40
  4. Step 4: Simplify right side
    6,518,734.80x = 22,082,126,994,668.16
  5. Step 5: Solve for x
    x = 22,082,126,994,668.16/6,518,734.80
  6. Step 6: Final answer
    x = 3,387,486.63

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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.