Home / 905,611.39-1,249,773.68-497,727.69

Finding the Fourth Proportional to 905,611.39, 1,249,773.68 and 497,727.69

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Solution

The fourth proportional to 905,611.39, 1,249,773.68 and 497,727.69 is: 686,880.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,611.39 : 1,249,773.68 = 497,727.69 : x
  2. Step 2: Convert to fraction form
    905,611.39/1,249,773.68 = 497,727.69/x
  3. Step 3: Cross multiply
    905,611.39x = 1,249,773.68 × 497,727.69
  4. Step 4: Simplify right side
    905,611.39x = 622,046,958,031.69
  5. Step 5: Solve for x
    x = 622,046,958,031.69/905,611.39
  6. Step 6: Final answer
    x = 686,880.67

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Double scale
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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.