Home / 817,657.61-1,226,690.51-285,186.29

Finding the Fourth Proportional to 817,657.61, 1,226,690.51 and 285,186.29

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Solution

The fourth proportional to 817,657.61, 1,226,690.51 and 285,186.29 is: 427,850.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,657.61 : 1,226,690.51 = 285,186.29 : x
  2. Step 2: Convert to fraction form
    817,657.61/1,226,690.51 = 285,186.29/x
  3. Step 3: Cross multiply
    817,657.61x = 1,226,690.51 × 285,186.29
  4. Step 4: Simplify right side
    817,657.61x = 349,835,307,965.72
  5. Step 5: Solve for x
    x = 349,835,307,965.72/817,657.61
  6. Step 6: Final answer
    x = 427,850.61

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Double scale
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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.