Home / 830,027.58-1,145,407.82-462,485.73

Finding the Fourth Proportional to 830,027.58, 1,145,407.82 and 462,485.73

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Solution

The fourth proportional to 830,027.58, 1,145,407.82 and 462,485.73 is: 638,213.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,027.58 : 1,145,407.82 = 462,485.73 : x
  2. Step 2: Convert to fraction form
    830,027.58/1,145,407.82 = 462,485.73/x
  3. Step 3: Cross multiply
    830,027.58x = 1,145,407.82 × 462,485.73
  4. Step 4: Simplify right side
    830,027.58x = 529,734,766,822.32
  5. Step 5: Solve for x
    x = 529,734,766,822.32/830,027.58
  6. Step 6: Final answer
    x = 638,213.45

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Double scale
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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.