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Finding the Fourth Proportional to 673,130.45, 928,899.80 and 367,212.89

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Solution

The fourth proportional to 673,130.45, 928,899.80 and 367,212.89 is: 506,742.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,130.45 : 928,899.80 = 367,212.89 : x
  2. Step 2: Convert to fraction form
    673,130.45/928,899.80 = 367,212.89/x
  3. Step 3: Cross multiply
    673,130.45x = 928,899.80 × 367,212.89
  4. Step 4: Simplify right side
    673,130.45x = 341,103,981,941.66
  5. Step 5: Solve for x
    x = 341,103,981,941.66/673,130.45
  6. Step 6: Final answer
    x = 506,742.76

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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.