Home / 677,927.43-935,539.07-372,005.55

Finding the Fourth Proportional to 677,927.43, 935,539.07 and 372,005.55

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Solution

The fourth proportional to 677,927.43, 935,539.07 and 372,005.55 is: 513,367.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,927.43 : 935,539.07 = 372,005.55 : x
  2. Step 2: Convert to fraction form
    677,927.43/935,539.07 = 372,005.55/x
  3. Step 3: Cross multiply
    677,927.43x = 935,539.07 × 372,005.55
  4. Step 4: Simplify right side
    677,927.43x = 348,025,724,421.81
  5. Step 5: Solve for x
    x = 348,025,724,421.81/677,927.43
  6. Step 6: Final answer
    x = 513,367.23

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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.