Home / 728,618.40-1,092,927.60-413,690.40

Finding the Fourth Proportional to 728,618.40, 1,092,927.60 and 413,690.40

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Solution

The fourth proportional to 728,618.40, 1,092,927.60 and 413,690.40 is: 620,535.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,618.40 : 1,092,927.60 = 413,690.40 : x
  2. Step 2: Convert to fraction form
    728,618.40/1,092,927.60 = 413,690.40/x
  3. Step 3: Cross multiply
    728,618.40x = 1,092,927.60 × 413,690.40
  4. Step 4: Simplify right side
    728,618.40x = 452,133,656,015.04
  5. Step 5: Solve for x
    x = 452,133,656,015.04/728,618.40
  6. Step 6: Final answer
    x = 620,535.60

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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.