Home / 621,530,701.59-857,712,452.18-343,072,277.67

Finding the Fourth Proportional to 621,530,701.59, 857,712,452.18 and 343,072,277.67

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Solution

The fourth proportional to 621,530,701.59, 857,712,452.18 and 343,072,277.67 is: 473,439,789.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,530,701.59 : 857,712,452.18 = 343,072,277.67 : x
  2. Step 2: Convert to fraction form
    621,530,701.59/857,712,452.18 = 343,072,277.67/x
  3. Step 3: Cross multiply
    621,530,701.59x = 857,712,452.18 × 343,072,277.67
  4. Step 4: Simplify right side
    621,530,701.59x = 294,257,364,553,598,208
  5. Step 5: Solve for x
    x = 294,257,364,553,598,208/621,530,701.59
  6. Step 6: Final answer
    x = 473,439,789.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.