Home / 905,243.72-1,249,244.82-497,354.04

Finding the Fourth Proportional to 905,243.72, 1,249,244.82 and 497,354.04

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Solution

The fourth proportional to 905,243.72, 1,249,244.82 and 497,354.04 is: 686,353.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,243.72 : 1,249,244.82 = 497,354.04 : x
  2. Step 2: Convert to fraction form
    905,243.72/1,249,244.82 = 497,354.04/x
  3. Step 3: Cross multiply
    905,243.72x = 1,249,244.82 × 497,354.04
  4. Step 4: Simplify right side
    905,243.72x = 621,316,958,176.07
  5. Step 5: Solve for x
    x = 621,316,958,176.07/905,243.72
  6. Step 6: Final answer
    x = 686,353.24

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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.