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Finding the Fourth Proportional to 318,357.70, 477,484.53 and 93,665.59

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Solution

The fourth proportional to 318,357.70, 477,484.53 and 93,665.59 is: 140,483.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,357.70 : 477,484.53 = 93,665.59 : x
  2. Step 2: Convert to fraction form
    318,357.70/477,484.53 = 93,665.59/x
  3. Step 3: Cross multiply
    318,357.70x = 477,484.53 × 93,665.59
  4. Step 4: Simplify right side
    318,357.70x = 44,723,870,218.32
  5. Step 5: Solve for x
    x = 44,723,870,218.32/318,357.70
  6. Step 6: Final answer
    x = 140,483.08

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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.