Home / 646,811.89-886,135.50-622,569.92

Finding the Fourth Proportional to 646,811.89, 886,135.50 and 622,569.92

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Solution

The fourth proportional to 646,811.89, 886,135.50 and 622,569.92 is: 852,923.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,811.89 : 886,135.50 = 622,569.92 : x
  2. Step 2: Convert to fraction form
    646,811.89/886,135.50 = 622,569.92/x
  3. Step 3: Cross multiply
    646,811.89x = 886,135.50 × 622,569.92
  4. Step 4: Simplify right side
    646,811.89x = 551,681,302,913.48
  5. Step 5: Solve for x
    x = 551,681,302,913.48/646,811.89
  6. Step 6: Final answer
    x = 852,923.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.