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Finding the Fourth Proportional to 696,153, 1,044,230.42 and 190,718.42

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Solution

The fourth proportional to 696,153, 1,044,230.42 and 190,718.42 is: 286,077.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,153 : 1,044,230.42 = 190,718.42 : x
  2. Step 2: Convert to fraction form
    696,153/1,044,230.42 = 190,718.42/x
  3. Step 3: Cross multiply
    696,153x = 1,044,230.42 × 190,718.42
  4. Step 4: Simplify right side
    696,153x = 199,153,975,818.34
  5. Step 5: Solve for x
    x = 199,153,975,818.34/696,153
  6. Step 6: Final answer
    x = 286,077.88

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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.