Home / 638,089.20-957,152.36-238,653.76

Finding the Fourth Proportional to 638,089.20, 957,152.36 and 238,653.76

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Solution

The fourth proportional to 638,089.20, 957,152.36 and 238,653.76 is: 357,987.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,089.20 : 957,152.36 = 238,653.76 : x
  2. Step 2: Convert to fraction form
    638,089.20/957,152.36 = 238,653.76/x
  3. Step 3: Cross multiply
    638,089.20x = 957,152.36 × 238,653.76
  4. Step 4: Simplify right side
    638,089.20x = 228,428,009,606.87
  5. Step 5: Solve for x
    x = 228,428,009,606.87/638,089.20
  6. Step 6: Final answer
    x = 357,987.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.