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Finding the Fourth Proportional to 283,383, 391,069.08 and 156,070.44

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Solution

The fourth proportional to 283,383, 391,069.08 and 156,070.44 is: 215,377.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,383 : 391,069.08 = 156,070.44 : x
  2. Step 2: Convert to fraction form
    283,383/391,069.08 = 156,070.44/x
  3. Step 3: Cross multiply
    283,383x = 391,069.08 × 156,070.44
  4. Step 4: Simplify right side
    283,383x = 61,034,323,386.00
  5. Step 5: Solve for x
    x = 61,034,323,386.00/283,383
  6. Step 6: Final answer
    x = 215,377.50

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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.