Home / 863,637.57-1,293,721.43-430,048.76

Finding the Fourth Proportional to 863,637.57, 1,293,721.43 and 430,048.76

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Solution

The fourth proportional to 863,637.57, 1,293,721.43 and 430,048.76 is: 644,209.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,637.57 : 1,293,721.43 = 430,048.76 : x
  2. Step 2: Convert to fraction form
    863,637.57/1,293,721.43 = 430,048.76/x
  3. Step 3: Cross multiply
    863,637.57x = 1,293,721.43 × 430,048.76
  4. Step 4: Simplify right side
    863,637.57x = 556,363,288,138.08
  5. Step 5: Solve for x
    x = 556,363,288,138.08/863,637.57
  6. Step 6: Final answer
    x = 644,209.22

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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.