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Finding the Fourth Proportional to 403,313.40, 604,970.10 and 341,105.40

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Solution

The fourth proportional to 403,313.40, 604,970.10 and 341,105.40 is: 511,658.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,313.40 : 604,970.10 = 341,105.40 : x
  2. Step 2: Convert to fraction form
    403,313.40/604,970.10 = 341,105.40/x
  3. Step 3: Cross multiply
    403,313.40x = 604,970.10 × 341,105.40
  4. Step 4: Simplify right side
    403,313.40x = 206,358,567,948.54
  5. Step 5: Solve for x
    x = 206,358,567,948.54/403,313.40
  6. Step 6: Final answer
    x = 511,658.10

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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.