Home / 1,272,057.84-1,755,486-699,141.60

Finding the Fourth Proportional to 1,272,057.84, 1,755,486 and 699,141.60

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Solution

The fourth proportional to 1,272,057.84, 1,755,486 and 699,141.60 is: 964,840.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,057.84 : 1,755,486 = 699,141.60 : x
  2. Step 2: Convert to fraction form
    1,272,057.84/1,755,486 = 699,141.60/x
  3. Step 3: Cross multiply
    1,272,057.84x = 1,755,486 × 699,141.60
  4. Step 4: Simplify right side
    1,272,057.84x = 1,227,333,290,817.60
  5. Step 5: Solve for x
    x = 1,227,333,290,817.60/1,272,057.84
  6. Step 6: Final answer
    x = 964,840.79

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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.