Home / 891,134.60-1,336,701.90-555,211.40

Finding the Fourth Proportional to 891,134.60, 1,336,701.90 and 555,211.40

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Solution

The fourth proportional to 891,134.60, 1,336,701.90 and 555,211.40 is: 832,817.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,134.60 : 1,336,701.90 = 555,211.40 : x
  2. Step 2: Convert to fraction form
    891,134.60/1,336,701.90 = 555,211.40/x
  3. Step 3: Cross multiply
    891,134.60x = 1,336,701.90 × 555,211.40
  4. Step 4: Simplify right side
    891,134.60x = 742,152,133,281.66
  5. Step 5: Solve for x
    x = 742,152,133,281.66/891,134.60
  6. Step 6: Final answer
    x = 832,817.10

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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.