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Finding the Fourth Proportional to 673,903.14, 929,990.84 and 367,981.66

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Solution

The fourth proportional to 673,903.14, 929,990.84 and 367,981.66 is: 507,817.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,903.14 : 929,990.84 = 367,981.66 : x
  2. Step 2: Convert to fraction form
    673,903.14/929,990.84 = 367,981.66/x
  3. Step 3: Cross multiply
    673,903.14x = 929,990.84 × 367,981.66
  4. Step 4: Simplify right side
    673,903.14x = 342,219,567,869.34
  5. Step 5: Solve for x
    x = 342,219,567,869.34/673,903.14
  6. Step 6: Final answer
    x = 507,817.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.