Home / 905,411.52-1,249,467.57-497,539.64

Finding the Fourth Proportional to 905,411.52, 1,249,467.57 and 497,539.64

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Solution

The fourth proportional to 905,411.52, 1,249,467.57 and 497,539.64 is: 686,604.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,411.52 : 1,249,467.57 = 497,539.64 : x
  2. Step 2: Convert to fraction form
    905,411.52/1,249,467.57 = 497,539.64/x
  3. Step 3: Cross multiply
    905,411.52x = 1,249,467.57 × 497,539.64
  4. Step 4: Simplify right side
    905,411.52x = 621,659,642,481.78
  5. Step 5: Solve for x
    x = 621,659,642,481.78/905,411.52
  6. Step 6: Final answer
    x = 686,604.52

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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.