Home / 905,127.66-1,249,076.99-497,255.92

Finding the Fourth Proportional to 905,127.66, 1,249,076.99 and 497,255.92

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Solution

The fourth proportional to 905,127.66, 1,249,076.99 and 497,255.92 is: 686,213.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,127.66 : 1,249,076.99 = 497,255.92 : x
  2. Step 2: Convert to fraction form
    905,127.66/1,249,076.99 = 497,255.92/x
  3. Step 3: Cross multiply
    905,127.66x = 1,249,076.99 × 497,255.92
  4. Step 4: Simplify right side
    905,127.66x = 621,110,927,813.28
  5. Step 5: Solve for x
    x = 621,110,927,813.28/905,127.66
  6. Step 6: Final answer
    x = 686,213.62

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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.