Home / 677,739.12-935,392.20-376,030.32

Finding the Fourth Proportional to 677,739.12, 935,392.20 and 376,030.32

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Solution

The fourth proportional to 677,739.12, 935,392.20 and 376,030.32 is: 518,984.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,739.12 : 935,392.20 = 376,030.32 : x
  2. Step 2: Convert to fraction form
    677,739.12/935,392.20 = 376,030.32/x
  3. Step 3: Cross multiply
    677,739.12x = 935,392.20 × 376,030.32
  4. Step 4: Simplify right side
    677,739.12x = 351,735,828,291.50
  5. Step 5: Solve for x
    x = 351,735,828,291.50/677,739.12
  6. Step 6: Final answer
    x = 518,984.10

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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.