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Finding the Fourth Proportional to 403,094.30, 556,206.55 and 230,979.15

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Solution

The fourth proportional to 403,094.30, 556,206.55 and 230,979.15 is: 318,714.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,094.30 : 556,206.55 = 230,979.15 : x
  2. Step 2: Convert to fraction form
    403,094.30/556,206.55 = 230,979.15/x
  3. Step 3: Cross multiply
    403,094.30x = 556,206.55 × 230,979.15
  4. Step 4: Simplify right side
    403,094.30x = 128,472,115,565.99
  5. Step 5: Solve for x
    x = 128,472,115,565.99/403,094.30
  6. Step 6: Final answer
    x = 318,714.79

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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.