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Finding the Fourth Proportional to 303,535.53, 418,814.01 and 176,142.78

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Solution

The fourth proportional to 303,535.53, 418,814.01 and 176,142.78 is: 243,039.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,535.53 : 418,814.01 = 176,142.78 : x
  2. Step 2: Convert to fraction form
    303,535.53/418,814.01 = 176,142.78/x
  3. Step 3: Cross multiply
    303,535.53x = 418,814.01 × 176,142.78
  4. Step 4: Simplify right side
    303,535.53x = 73,771,064,024.35
  5. Step 5: Solve for x
    x = 73,771,064,024.35/303,535.53
  6. Step 6: Final answer
    x = 243,039.30

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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.