Home / 403,132.15-556,345.35-231,078.77

Finding the Fourth Proportional to 403,132.15, 556,345.35 and 231,078.77

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Solution

The fourth proportional to 403,132.15, 556,345.35 and 231,078.77 is: 318,901.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,132.15 : 556,345.35 = 231,078.77 : x
  2. Step 2: Convert to fraction form
    403,132.15/556,345.35 = 231,078.77/x
  3. Step 3: Cross multiply
    403,132.15x = 556,345.35 × 231,078.77
  4. Step 4: Simplify right side
    403,132.15x = 128,559,596,391.49
  5. Step 5: Solve for x
    x = 128,559,596,391.49/403,132.15
  6. Step 6: Final answer
    x = 318,901.87

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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.