Home / 905,617.85-1,249,780.76-497,712.29

Finding the Fourth Proportional to 905,617.85, 1,249,780.76 and 497,712.29

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Solution

The fourth proportional to 905,617.85, 1,249,780.76 and 497,712.29 is: 686,858.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,617.85 : 1,249,780.76 = 497,712.29 : x
  2. Step 2: Convert to fraction form
    905,617.85/1,249,780.76 = 497,712.29/x
  3. Step 3: Cross multiply
    905,617.85x = 1,249,780.76 × 497,712.29
  4. Step 4: Simplify right side
    905,617.85x = 622,031,237,186.50
  5. Step 5: Solve for x
    x = 622,031,237,186.50/905,617.85
  6. Step 6: Final answer
    x = 686,858.41

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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.