Home / 897,615.99-1,238,819.60-515,641.83

Finding the Fourth Proportional to 897,615.99, 1,238,819.60 and 515,641.83

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Solution

The fourth proportional to 897,615.99, 1,238,819.60 and 515,641.83 is: 711,648.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,615.99 : 1,238,819.60 = 515,641.83 : x
  2. Step 2: Convert to fraction form
    897,615.99/1,238,819.60 = 515,641.83/x
  3. Step 3: Cross multiply
    897,615.99x = 1,238,819.60 × 515,641.83
  4. Step 4: Simplify right side
    897,615.99x = 638,787,203,005.66
  5. Step 5: Solve for x
    x = 638,787,203,005.66/897,615.99
  6. Step 6: Final answer
    x = 711,648.64

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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.