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Finding the Fourth Proportional to 301,775.70, 452,145.15 and 143,663.70

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Solution

The fourth proportional to 301,775.70, 452,145.15 and 143,663.70 is: 215,248.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,775.70 : 452,145.15 = 143,663.70 : x
  2. Step 2: Convert to fraction form
    301,775.70/452,145.15 = 143,663.70/x
  3. Step 3: Cross multiply
    301,775.70x = 452,145.15 × 143,663.70
  4. Step 4: Simplify right side
    301,775.70x = 64,956,845,186.06
  5. Step 5: Solve for x
    x = 64,956,845,186.06/301,775.70
  6. Step 6: Final answer
    x = 215,248.76

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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.