Home / 905,242.96-1,249,236-497,371.12

Finding the Fourth Proportional to 905,242.96, 1,249,236 and 497,371.12

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Solution

The fourth proportional to 905,242.96, 1,249,236 and 497,371.12 is: 686,372.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,242.96 : 1,249,236 = 497,371.12 : x
  2. Step 2: Convert to fraction form
    905,242.96/1,249,236 = 497,371.12/x
  3. Step 3: Cross multiply
    905,242.96x = 1,249,236 × 497,371.12
  4. Step 4: Simplify right side
    905,242.96x = 621,333,908,464.32
  5. Step 5: Solve for x
    x = 621,333,908,464.32/905,242.96
  6. Step 6: Final answer
    x = 686,372.54

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Double scale
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Similar ratio
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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.