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Finding the Fourth Proportional to 662,881.11, 914,782.17 and 376,407.19

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Solution

The fourth proportional to 662,881.11, 914,782.17 and 376,407.19 is: 519,445.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,881.11 : 914,782.17 = 376,407.19 : x
  2. Step 2: Convert to fraction form
    662,881.11/914,782.17 = 376,407.19/x
  3. Step 3: Cross multiply
    662,881.11x = 914,782.17 × 376,407.19
  4. Step 4: Simplify right side
    662,881.11x = 344,330,586,071.80
  5. Step 5: Solve for x
    x = 344,330,586,071.80/662,881.11
  6. Step 6: Final answer
    x = 519,445.46

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Double scale
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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.