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Finding the Fourth Proportional to 676,293.30, 933,124.56 and 400,511.88

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Solution

The fourth proportional to 676,293.30, 933,124.56 and 400,511.88 is: 552,611.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,293.30 : 933,124.56 = 400,511.88 : x
  2. Step 2: Convert to fraction form
    676,293.30/933,124.56 = 400,511.88/x
  3. Step 3: Cross multiply
    676,293.30x = 933,124.56 × 400,511.88
  4. Step 4: Simplify right side
    676,293.30x = 373,727,471,799.77
  5. Step 5: Solve for x
    x = 373,727,471,799.77/676,293.30
  6. Step 6: Final answer
    x = 552,611.52

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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.