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Finding the Fourth Proportional to 673,392.76, 929,301.75 and 367,488.89

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Solution

The fourth proportional to 673,392.76, 929,301.75 and 367,488.89 is: 507,145.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,392.76 : 929,301.75 = 367,488.89 : x
  2. Step 2: Convert to fraction form
    673,392.76/929,301.75 = 367,488.89/x
  3. Step 3: Cross multiply
    673,392.76x = 929,301.75 × 367,488.89
  4. Step 4: Simplify right side
    673,392.76x = 341,508,063,936.05
  5. Step 5: Solve for x
    x = 341,508,063,936.05/673,392.76
  6. Step 6: Final answer
    x = 507,145.44

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Half scale
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Double scale
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Similar ratio
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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.