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Finding the Fourth Proportional to 988,167.36, 1,363,695.84 and 606,404.64

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Solution

The fourth proportional to 988,167.36, 1,363,695.84 and 606,404.64 is: 836,853.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,167.36 : 1,363,695.84 = 606,404.64 : x
  2. Step 2: Convert to fraction form
    988,167.36/1,363,695.84 = 606,404.64/x
  3. Step 3: Cross multiply
    988,167.36x = 1,363,695.84 × 606,404.64
  4. Step 4: Simplify right side
    988,167.36x = 826,951,484,924.70
  5. Step 5: Solve for x
    x = 826,951,484,924.70/988,167.36
  6. Step 6: Final answer
    x = 836,853.67

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Double scale
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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.