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Finding the Fourth Proportional to 629,879,541.60, 944,819,312.40 and 542,203,586.40

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Solution

The fourth proportional to 629,879,541.60, 944,819,312.40 and 542,203,586.40 is: 813,305,379.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,879,541.60 : 944,819,312.40 = 542,203,586.40 : x
  2. Step 2: Convert to fraction form
    629,879,541.60/944,819,312.40 = 542,203,586.40/x
  3. Step 3: Cross multiply
    629,879,541.60x = 944,819,312.40 × 542,203,586.40
  4. Step 4: Simplify right side
    629,879,541.60x = 512,284,419,683,261,952
  5. Step 5: Solve for x
    x = 512,284,419,683,261,952/629,879,541.60
  6. Step 6: Final answer
    x = 813,305,379.60

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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.