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Finding the Fourth Proportional to 920,088,804.56, 1,379,648,931.19 and 629,039,162.19

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Solution

The fourth proportional to 920,088,804.56, 1,379,648,931.19 and 629,039,162.19 is: 943,227,657.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,088,804.56 : 1,379,648,931.19 = 629,039,162.19 : x
  2. Step 2: Convert to fraction form
    920,088,804.56/1,379,648,931.19 = 629,039,162.19/x
  3. Step 3: Cross multiply
    920,088,804.56x = 1,379,648,931.19 × 629,039,162.19
  4. Step 4: Simplify right side
    920,088,804.56x = 867,853,207,790,514,048
  5. Step 5: Solve for x
    x = 867,853,207,790,514,048/920,088,804.56
  6. Step 6: Final answer
    x = 943,227,657.48

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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.