Home / 472,392,426.80-708,588,640.20-424,775,313.20

Finding the Fourth Proportional to 472,392,426.80, 708,588,640.20 and 424,775,313.20

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Solution

The fourth proportional to 472,392,426.80, 708,588,640.20 and 424,775,313.20 is: 637,162,969.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,426.80 : 708,588,640.20 = 424,775,313.20 : x
  2. Step 2: Convert to fraction form
    472,392,426.80/708,588,640.20 = 424,775,313.20/x
  3. Step 3: Cross multiply
    472,392,426.80x = 708,588,640.20 × 424,775,313.20
  4. Step 4: Simplify right side
    472,392,426.80x = 300,990,961,570,917,120
  5. Step 5: Solve for x
    x = 300,990,961,570,917,120/472,392,426.80
  6. Step 6: Final answer
    x = 637,162,969.80

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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.