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Finding the Fourth Proportional to 316,305.81, 474,458.72 and 79,666.94

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Solution

The fourth proportional to 316,305.81, 474,458.72 and 79,666.94 is: 119,500.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,305.81 : 474,458.72 = 79,666.94 : x
  2. Step 2: Convert to fraction form
    316,305.81/474,458.72 = 79,666.94/x
  3. Step 3: Cross multiply
    316,305.81x = 474,458.72 × 79,666.94
  4. Step 4: Simplify right side
    316,305.81x = 37,798,675,166.53
  5. Step 5: Solve for x
    x = 37,798,675,166.53/316,305.81
  6. Step 6: Final answer
    x = 119,500.41

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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.