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Finding the Fourth Proportional to 590,813.70, 886,220.55 and 401,856.90

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Solution

The fourth proportional to 590,813.70, 886,220.55 and 401,856.90 is: 602,785.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,813.70 : 886,220.55 = 401,856.90 : x
  2. Step 2: Convert to fraction form
    590,813.70/886,220.55 = 401,856.90/x
  3. Step 3: Cross multiply
    590,813.70x = 886,220.55 × 401,856.90
  4. Step 4: Simplify right side
    590,813.70x = 356,133,842,939.30
  5. Step 5: Solve for x
    x = 356,133,842,939.30/590,813.70
  6. Step 6: Final answer
    x = 602,785.35

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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.