Home / 856,667.40-1,285,001.10-607,835.40

Finding the Fourth Proportional to 856,667.40, 1,285,001.10 and 607,835.40

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Solution

The fourth proportional to 856,667.40, 1,285,001.10 and 607,835.40 is: 911,753.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,667.40 : 1,285,001.10 = 607,835.40 : x
  2. Step 2: Convert to fraction form
    856,667.40/1,285,001.10 = 607,835.40/x
  3. Step 3: Cross multiply
    856,667.40x = 1,285,001.10 × 607,835.40
  4. Step 4: Simplify right side
    856,667.40x = 781,069,157,618.94
  5. Step 5: Solve for x
    x = 781,069,157,618.94/856,667.40
  6. Step 6: Final answer
    x = 911,753.10

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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.