Home / 905,081.45-1,249,032.15-497,188.94

Finding the Fourth Proportional to 905,081.45, 1,249,032.15 and 497,188.94

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Solution

The fourth proportional to 905,081.45, 1,249,032.15 and 497,188.94 is: 686,131.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,081.45 : 1,249,032.15 = 497,188.94 : x
  2. Step 2: Convert to fraction form
    905,081.45/1,249,032.15 = 497,188.94/x
  3. Step 3: Cross multiply
    905,081.45x = 1,249,032.15 × 497,188.94
  4. Step 4: Simplify right side
    905,081.45x = 621,004,964,439.26
  5. Step 5: Solve for x
    x = 621,004,964,439.26/905,081.45
  6. Step 6: Final answer
    x = 686,131.58

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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.