Home / 1,085,687.20-1,628,530.80-525,815.20

Finding the Fourth Proportional to 1,085,687.20, 1,628,530.80 and 525,815.20

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Solution

The fourth proportional to 1,085,687.20, 1,628,530.80 and 525,815.20 is: 788,722.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,085,687.20 : 1,628,530.80 = 525,815.20 : x
  2. Step 2: Convert to fraction form
    1,085,687.20/1,628,530.80 = 525,815.20/x
  3. Step 3: Cross multiply
    1,085,687.20x = 1,628,530.80 × 525,815.20
  4. Step 4: Simplify right side
    1,085,687.20x = 856,306,248,308.16
  5. Step 5: Solve for x
    x = 856,306,248,308.16/1,085,687.20
  6. Step 6: Final answer
    x = 788,722.80

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.