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Finding the Fourth Proportional to 346,446.72, 478,426.64 and 327,577.70

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Solution

The fourth proportional to 346,446.72, 478,426.64 and 327,577.70 is: 452,369.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,446.72 : 478,426.64 = 327,577.70 : x
  2. Step 2: Convert to fraction form
    346,446.72/478,426.64 = 327,577.70/x
  3. Step 3: Cross multiply
    346,446.72x = 478,426.64 × 327,577.70
  4. Step 4: Simplify right side
    346,446.72x = 156,721,897,908.11
  5. Step 5: Solve for x
    x = 156,721,897,908.11/346,446.72
  6. Step 6: Final answer
    x = 452,369.41

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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.