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Finding the Fourth Proportional to 956,779,251.90, 1,340,397,945.30 and 956,779,251.90

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Solution

The fourth proportional to 956,779,251.90, 1,340,397,945.30 and 956,779,251.90 is: 1,340,397,945.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    956,779,251.90 : 1,340,397,945.30 = 956,779,251.90 : x
  2. Step 2: Convert to fraction form
    956,779,251.90/1,340,397,945.30 = 956,779,251.90/x
  3. Step 3: Cross multiply
    956,779,251.90x = 1,340,397,945.30 × 956,779,251.90
  4. Step 4: Simplify right side
    956,779,251.90x = 1,282,464,943,352,431,104
  5. Step 5: Solve for x
    x = 1,282,464,943,352,431,104/956,779,251.90
  6. Step 6: Final answer
    x = 1,340,397,945.30

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.