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Finding the Fourth Proportional to 547,775.70, 821,663.55 and 173,798.70

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Solution

The fourth proportional to 547,775.70, 821,663.55 and 173,798.70 is: 260,698.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,775.70 : 821,663.55 = 173,798.70 : x
  2. Step 2: Convert to fraction form
    547,775.70/821,663.55 = 173,798.70/x
  3. Step 3: Cross multiply
    547,775.70x = 821,663.55 × 173,798.70
  4. Step 4: Simplify right side
    547,775.70x = 142,804,056,827.39
  5. Step 5: Solve for x
    x = 142,804,056,827.39/547,775.70
  6. Step 6: Final answer
    x = 260,698.05

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.