Home / 905,207.11-1,249,186.58-497,309.74

Finding the Fourth Proportional to 905,207.11, 1,249,186.58 and 497,309.74

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Solution

The fourth proportional to 905,207.11, 1,249,186.58 and 497,309.74 is: 686,287.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,207.11 : 1,249,186.58 = 497,309.74 : x
  2. Step 2: Convert to fraction form
    905,207.11/1,249,186.58 = 497,309.74/x
  3. Step 3: Cross multiply
    905,207.11x = 1,249,186.58 × 497,309.74
  4. Step 4: Simplify right side
    905,207.11x = 621,232,653,311.29
  5. Step 5: Solve for x
    x = 621,232,653,311.29/905,207.11
  6. Step 6: Final answer
    x = 686,287.86

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.