Home / 910,067.76-1,255,892.06-502,169.28

Finding the Fourth Proportional to 910,067.76, 1,255,892.06 and 502,169.28

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Solution

The fourth proportional to 910,067.76, 1,255,892.06 and 502,169.28 is: 692,992.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,067.76 : 1,255,892.06 = 502,169.28 : x
  2. Step 2: Convert to fraction form
    910,067.76/1,255,892.06 = 502,169.28/x
  3. Step 3: Cross multiply
    910,067.76x = 1,255,892.06 × 502,169.28
  4. Step 4: Simplify right side
    910,067.76x = 630,670,411,527.92
  5. Step 5: Solve for x
    x = 630,670,411,527.92/910,067.76
  6. Step 6: Final answer
    x = 692,992.81

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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.