Home / 826,840.80-1,140,970.32-464,236.20

Finding the Fourth Proportional to 826,840.80, 1,140,970.32 and 464,236.20

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Solution

The fourth proportional to 826,840.80, 1,140,970.32 and 464,236.20 is: 640,606.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,840.80 : 1,140,970.32 = 464,236.20 : x
  2. Step 2: Convert to fraction form
    826,840.80/1,140,970.32 = 464,236.20/x
  3. Step 3: Cross multiply
    826,840.80x = 1,140,970.32 × 464,236.20
  4. Step 4: Simplify right side
    826,840.80x = 529,679,725,669.58
  5. Step 5: Solve for x
    x = 529,679,725,669.58/826,840.80
  6. Step 6: Final answer
    x = 640,606.66

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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.