Home / 916,074.60-1,374,111.90-636,138.60

Finding the Fourth Proportional to 916,074.60, 1,374,111.90 and 636,138.60

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Solution

The fourth proportional to 916,074.60, 1,374,111.90 and 636,138.60 is: 954,207.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,074.60 : 1,374,111.90 = 636,138.60 : x
  2. Step 2: Convert to fraction form
    916,074.60/1,374,111.90 = 636,138.60/x
  3. Step 3: Cross multiply
    916,074.60x = 1,374,111.90 × 636,138.60
  4. Step 4: Simplify right side
    916,074.60x = 874,125,620,309.34
  5. Step 5: Solve for x
    x = 874,125,620,309.34/916,074.60
  6. Step 6: Final answer
    x = 954,207.90

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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.