Home / 699,036.55-964,661.27-393,112.83

Finding the Fourth Proportional to 699,036.55, 964,661.27 and 393,112.83

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Solution

The fourth proportional to 699,036.55, 964,661.27 and 393,112.83 is: 542,490.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,036.55 : 964,661.27 = 393,112.83 : x
  2. Step 2: Convert to fraction form
    699,036.55/964,661.27 = 393,112.83/x
  3. Step 3: Cross multiply
    699,036.55x = 964,661.27 × 393,112.83
  4. Step 4: Simplify right side
    699,036.55x = 379,220,718,066.79
  5. Step 5: Solve for x
    x = 379,220,718,066.79/699,036.55
  6. Step 6: Final answer
    x = 542,490.55

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1.5x scale

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.