Home / 621,636,341.52-857,835,619.48-343,171,871.76

Finding the Fourth Proportional to 621,636,341.52, 857,835,619.48 and 343,171,871.76

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Solution

The fourth proportional to 621,636,341.52, 857,835,619.48 and 343,171,871.76 is: 473,564,744.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,636,341.52 : 857,835,619.48 = 343,171,871.76 : x
  2. Step 2: Convert to fraction form
    621,636,341.52/857,835,619.48 = 343,171,871.76/x
  3. Step 3: Cross multiply
    621,636,341.52x = 857,835,619.48 × 343,171,871.76
  4. Step 4: Simplify right side
    621,636,341.52x = 294,385,055,199,350,720
  5. Step 5: Solve for x
    x = 294,385,055,199,350,720/621,636,341.52
  6. Step 6: Final answer
    x = 473,564,744.43

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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.