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Finding the Fourth Proportional to 307,595.70, 461,393.55 and 172,521.11

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Solution

The fourth proportional to 307,595.70, 461,393.55 and 172,521.11 is: 258,781.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,595.70 : 461,393.55 = 172,521.11 : x
  2. Step 2: Convert to fraction form
    307,595.70/461,393.55 = 172,521.11/x
  3. Step 3: Cross multiply
    307,595.70x = 461,393.55 × 172,521.11
  4. Step 4: Simplify right side
    307,595.70x = 79,600,128,546.32
  5. Step 5: Solve for x
    x = 79,600,128,546.32/307,595.70
  6. Step 6: Final answer
    x = 258,781.67

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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.