Home / 905,136.56-1,249,312.92-523,108.16

Finding the Fourth Proportional to 905,136.56, 1,249,312.92 and 523,108.16

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Solution

The fourth proportional to 905,136.56, 1,249,312.92 and 523,108.16 is: 722,018.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,136.56 : 1,249,312.92 = 523,108.16 : x
  2. Step 2: Convert to fraction form
    905,136.56/1,249,312.92 = 523,108.16/x
  3. Step 3: Cross multiply
    905,136.56x = 1,249,312.92 × 523,108.16
  4. Step 4: Simplify right side
    905,136.56x = 653,525,782,845.43
  5. Step 5: Solve for x
    x = 653,525,782,845.43/905,136.56
  6. Step 6: Final answer
    x = 722,018.99

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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.