Home / 905,127.16-1,249,076.30-497,255.42

Finding the Fourth Proportional to 905,127.16, 1,249,076.30 and 497,255.42

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Solution

The fourth proportional to 905,127.16, 1,249,076.30 and 497,255.42 is: 686,212.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,127.16 : 1,249,076.30 = 497,255.42 : x
  2. Step 2: Convert to fraction form
    905,127.16/1,249,076.30 = 497,255.42/x
  3. Step 3: Cross multiply
    905,127.16x = 1,249,076.30 × 497,255.42
  4. Step 4: Simplify right side
    905,127.16x = 621,109,960,168.55
  5. Step 5: Solve for x
    x = 621,109,960,168.55/905,127.16
  6. Step 6: Final answer
    x = 686,212.93

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Double scale
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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.