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Finding the Fourth Proportional to 913,291,497.90, 1,369,937,246.85 and 913,291,497.90

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Solution

The fourth proportional to 913,291,497.90, 1,369,937,246.85 and 913,291,497.90 is: 1,369,937,246.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,291,497.90 : 1,369,937,246.85 = 913,291,497.90 : x
  2. Step 2: Convert to fraction form
    913,291,497.90/1,369,937,246.85 = 913,291,497.90/x
  3. Step 3: Cross multiply
    913,291,497.90x = 1,369,937,246.85 × 913,291,497.90
  4. Step 4: Simplify right side
    913,291,497.90x = 1,251,152,040,204,638,464
  5. Step 5: Solve for x
    x = 1,251,152,040,204,638,464/913,291,497.90
  6. Step 6: Final answer
    x = 1,369,937,246.85

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1.5x scale

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.