Home / 917,794.41-1,376,218.89-411,921.72

Finding the Fourth Proportional to 917,794.41, 1,376,218.89 and 411,921.72

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Solution

The fourth proportional to 917,794.41, 1,376,218.89 and 411,921.72 is: 617,670.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,794.41 : 1,376,218.89 = 411,921.72 : x
  2. Step 2: Convert to fraction form
    917,794.41/1,376,218.89 = 411,921.72/x
  3. Step 3: Cross multiply
    917,794.41x = 1,376,218.89 × 411,921.72
  4. Step 4: Simplify right side
    917,794.41x = 566,894,452,265.29
  5. Step 5: Solve for x
    x = 566,894,452,265.29/917,794.41
  6. Step 6: Final answer
    x = 617,670.41

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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.