Home / 890,667.40-1,336,001.10-838,179.40

Finding the Fourth Proportional to 890,667.40, 1,336,001.10 and 838,179.40

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Solution

The fourth proportional to 890,667.40, 1,336,001.10 and 838,179.40 is: 1,257,269.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,667.40 : 1,336,001.10 = 838,179.40 : x
  2. Step 2: Convert to fraction form
    890,667.40/1,336,001.10 = 838,179.40/x
  3. Step 3: Cross multiply
    890,667.40x = 1,336,001.10 × 838,179.40
  4. Step 4: Simplify right side
    890,667.40x = 1,119,808,600,397.34
  5. Step 5: Solve for x
    x = 1,119,808,600,397.34/890,667.40
  6. Step 6: Final answer
    x = 1,257,269.10

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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.