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Finding the Fourth Proportional to 341,639.10, 512,458.65 and 336,390.30

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Solution

The fourth proportional to 341,639.10, 512,458.65 and 336,390.30 is: 504,585.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,639.10 : 512,458.65 = 336,390.30 : x
  2. Step 2: Convert to fraction form
    341,639.10/512,458.65 = 336,390.30/x
  3. Step 3: Cross multiply
    341,639.10x = 512,458.65 × 336,390.30
  4. Step 4: Simplify right side
    341,639.10x = 172,386,119,011.10
  5. Step 5: Solve for x
    x = 172,386,119,011.10/341,639.10
  6. Step 6: Final answer
    x = 504,585.45

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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.