Home / 891,036.60-1,336,554.90-417,769.80

Finding the Fourth Proportional to 891,036.60, 1,336,554.90 and 417,769.80

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Solution

The fourth proportional to 891,036.60, 1,336,554.90 and 417,769.80 is: 626,654.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,036.60 : 1,336,554.90 = 417,769.80 : x
  2. Step 2: Convert to fraction form
    891,036.60/1,336,554.90 = 417,769.80/x
  3. Step 3: Cross multiply
    891,036.60x = 1,336,554.90 × 417,769.80
  4. Step 4: Simplify right side
    891,036.60x = 558,372,273,262.02
  5. Step 5: Solve for x
    x = 558,372,273,262.02/891,036.60
  6. Step 6: Final answer
    x = 626,654.70

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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.