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Finding the Fourth Proportional to 590,211.60, 885,317.40 and 235,480.20

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Solution

The fourth proportional to 590,211.60, 885,317.40 and 235,480.20 is: 353,220.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,211.60 : 885,317.40 = 235,480.20 : x
  2. Step 2: Convert to fraction form
    590,211.60/885,317.40 = 235,480.20/x
  3. Step 3: Cross multiply
    590,211.60x = 885,317.40 × 235,480.20
  4. Step 4: Simplify right side
    590,211.60x = 208,474,718,415.48
  5. Step 5: Solve for x
    x = 208,474,718,415.48/590,211.60
  6. Step 6: Final answer
    x = 353,220.30

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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.