Home / 816,485.25-1,126,788.08-453,915.17

Finding the Fourth Proportional to 816,485.25, 1,126,788.08 and 453,915.17

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Solution

The fourth proportional to 816,485.25, 1,126,788.08 and 453,915.17 is: 626,424.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,485.25 : 1,126,788.08 = 453,915.17 : x
  2. Step 2: Convert to fraction form
    816,485.25/1,126,788.08 = 453,915.17/x
  3. Step 3: Cross multiply
    816,485.25x = 1,126,788.08 × 453,915.17
  4. Step 4: Simplify right side
    816,485.25x = 511,466,194,983.66
  5. Step 5: Solve for x
    x = 511,466,194,983.66/816,485.25
  6. Step 6: Final answer
    x = 626,424.29

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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.