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Finding the Fourth Proportional to 586,973.38, 810,026.49 and 318,701.38

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Solution

The fourth proportional to 586,973.38, 810,026.49 and 318,701.38 is: 439,809.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,973.38 : 810,026.49 = 318,701.38 : x
  2. Step 2: Convert to fraction form
    586,973.38/810,026.49 = 318,701.38/x
  3. Step 3: Cross multiply
    586,973.38x = 810,026.49 × 318,701.38
  4. Step 4: Simplify right side
    586,973.38x = 258,156,560,199.56
  5. Step 5: Solve for x
    x = 258,156,560,199.56/586,973.38
  6. Step 6: Final answer
    x = 439,809.66

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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.