Home / 623,789.40-860,828.74-337,308.76

Finding the Fourth Proportional to 623,789.40, 860,828.74 and 337,308.76

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Solution

The fourth proportional to 623,789.40, 860,828.74 and 337,308.76 is: 465,485.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,789.40 : 860,828.74 = 337,308.76 : x
  2. Step 2: Convert to fraction form
    623,789.40/860,828.74 = 337,308.76/x
  3. Step 3: Cross multiply
    623,789.40x = 860,828.74 × 337,308.76
  4. Step 4: Simplify right side
    623,789.40x = 290,365,074,861.76
  5. Step 5: Solve for x
    x = 290,365,074,861.76/623,789.40
  6. Step 6: Final answer
    x = 465,485.75

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.