Home / 905,613.38-1,249,776.44-497,729.68

Finding the Fourth Proportional to 905,613.38, 1,249,776.44 and 497,729.68

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Solution

The fourth proportional to 905,613.38, 1,249,776.44 and 497,729.68 is: 686,883.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,613.38 : 1,249,776.44 = 497,729.68 : x
  2. Step 2: Convert to fraction form
    905,613.38/1,249,776.44 = 497,729.68/x
  3. Step 3: Cross multiply
    905,613.38x = 1,249,776.44 × 497,729.68
  4. Step 4: Simplify right side
    905,613.38x = 622,050,827,552.74
  5. Step 5: Solve for x
    x = 622,050,827,552.74/905,613.38
  6. Step 6: Final answer
    x = 686,883.43

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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.