Home / 917,838.10-1,376,284.43-411,965.40

Finding the Fourth Proportional to 917,838.10, 1,376,284.43 and 411,965.40

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Solution

The fourth proportional to 917,838.10, 1,376,284.43 and 411,965.40 is: 617,735.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,838.10 : 1,376,284.43 = 411,965.40 : x
  2. Step 2: Convert to fraction form
    917,838.10/1,376,284.43 = 411,965.40/x
  3. Step 3: Cross multiply
    917,838.10x = 1,376,284.43 × 411,965.40
  4. Step 4: Simplify right side
    917,838.10x = 566,981,571,909.70
  5. Step 5: Solve for x
    x = 566,981,571,909.70/917,838.10
  6. Step 6: Final answer
    x = 617,735.93

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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.