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Finding the Fourth Proportional to 346,368.27, 478,318.31 and 327,498.21

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Solution

The fourth proportional to 346,368.27, 478,318.31 and 327,498.21 is: 452,259.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,368.27 : 478,318.31 = 327,498.21 : x
  2. Step 2: Convert to fraction form
    346,368.27/478,318.31 = 327,498.21/x
  3. Step 3: Cross multiply
    346,368.27x = 478,318.31 × 327,498.21
  4. Step 4: Simplify right side
    346,368.27x = 156,648,388,697.73
  5. Step 5: Solve for x
    x = 156,648,388,697.73/346,368.27
  6. Step 6: Final answer
    x = 452,259.64

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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.