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Finding the Fourth Proportional to 673,057.40, 928,836.70 and 367,138.92

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Solution

The fourth proportional to 673,057.40, 928,836.70 and 367,138.92 is: 506,661.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,057.40 : 928,836.70 = 367,138.92 : x
  2. Step 2: Convert to fraction form
    673,057.40/928,836.70 = 367,138.92/x
  3. Step 3: Cross multiply
    673,057.40x = 928,836.70 × 367,138.92
  4. Step 4: Simplify right side
    673,057.40x = 341,012,102,894.36
  5. Step 5: Solve for x
    x = 341,012,102,894.36/673,057.40
  6. Step 6: Final answer
    x = 506,661.25

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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.