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Finding the Fourth Proportional to 863,136,019.10, 1,294,704,028.65 and 791,710,348.70

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Solution

The fourth proportional to 863,136,019.10, 1,294,704,028.65 and 791,710,348.70 is: 1,187,565,523.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,136,019.10 : 1,294,704,028.65 = 791,710,348.70 : x
  2. Step 2: Convert to fraction form
    863,136,019.10/1,294,704,028.65 = 791,710,348.70/x
  3. Step 3: Cross multiply
    863,136,019.10x = 1,294,704,028.65 × 791,710,348.70
  4. Step 4: Simplify right side
    863,136,019.10x = 1,025,030,577,985,786,368
  5. Step 5: Solve for x
    x = 1,025,030,577,985,786,368/863,136,019.10
  6. Step 6: Final answer
    x = 1,187,565,523.05

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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.