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Finding the Fourth Proportional to 333,316.81, 500,255.20 and 143,920.33

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Solution

The fourth proportional to 333,316.81, 500,255.20 and 143,920.33 is: 216,001.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,316.81 : 500,255.20 = 143,920.33 : x
  2. Step 2: Convert to fraction form
    333,316.81/500,255.20 = 143,920.33/x
  3. Step 3: Cross multiply
    333,316.81x = 500,255.20 × 143,920.33
  4. Step 4: Simplify right side
    333,316.81x = 71,996,892,748.61
  5. Step 5: Solve for x
    x = 71,996,892,748.61/333,316.81
  6. Step 6: Final answer
    x = 216,001.39

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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.