Home / 917,792.16-1,376,215.53-411,919.47

Finding the Fourth Proportional to 917,792.16, 1,376,215.53 and 411,919.47

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Solution

The fourth proportional to 917,792.16, 1,376,215.53 and 411,919.47 is: 617,667.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,792.16 : 1,376,215.53 = 411,919.47 : x
  2. Step 2: Convert to fraction form
    917,792.16/1,376,215.53 = 411,919.47/x
  3. Step 3: Cross multiply
    917,792.16x = 1,376,215.53 × 411,919.47
  4. Step 4: Simplify right side
    917,792.16x = 566,889,969,663.77
  5. Step 5: Solve for x
    x = 566,889,969,663.77/917,792.16
  6. Step 6: Final answer
    x = 617,667.04

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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.