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Finding the Fourth Proportional to 637,985.51, 956,978.27 and 188,671.39

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Solution

The fourth proportional to 637,985.51, 956,978.27 and 188,671.39 is: 283,007.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,985.51 : 956,978.27 = 188,671.39 : x
  2. Step 2: Convert to fraction form
    637,985.51/956,978.27 = 188,671.39/x
  3. Step 3: Cross multiply
    637,985.51x = 956,978.27 × 188,671.39
  4. Step 4: Simplify right side
    637,985.51x = 180,554,420,400.70
  5. Step 5: Solve for x
    x = 180,554,420,400.70/637,985.51
  6. Step 6: Final answer
    x = 283,007.09

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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.