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Finding the Fourth Proportional to 719,392.60, 1,079,672.10 and 696,064.60

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Solution

The fourth proportional to 719,392.60, 1,079,672.10 and 696,064.60 is: 1,044,661.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,392.60 : 1,079,672.10 = 696,064.60 : x
  2. Step 2: Convert to fraction form
    719,392.60/1,079,672.10 = 696,064.60/x
  3. Step 3: Cross multiply
    719,392.60x = 1,079,672.10 × 696,064.60
  4. Step 4: Simplify right side
    719,392.60x = 751,521,528,417.66
  5. Step 5: Solve for x
    x = 751,521,528,417.66/719,392.60
  6. Step 6: Final answer
    x = 1,044,661.19

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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.