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Finding the Fourth Proportional to 911,335.73, 1,257,653.75 and 503,429.04

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Solution

The fourth proportional to 911,335.73, 1,257,653.75 and 503,429.04 is: 694,737.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,335.73 : 1,257,653.75 = 503,429.04 : x
  2. Step 2: Convert to fraction form
    911,335.73/1,257,653.75 = 503,429.04/x
  3. Step 3: Cross multiply
    911,335.73x = 1,257,653.75 × 503,429.04
  4. Step 4: Simplify right side
    911,335.73x = 633,139,417,497.76
  5. Step 5: Solve for x
    x = 633,139,417,497.76/911,335.73
  6. Step 6: Final answer
    x = 694,737.84

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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.