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Finding the Fourth Proportional to 567,776.28, 783,536.22 and 313,136.28

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Solution

The fourth proportional to 567,776.28, 783,536.22 and 313,136.28 is: 432,130.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,776.28 : 783,536.22 = 313,136.28 : x
  2. Step 2: Convert to fraction form
    567,776.28/783,536.22 = 313,136.28/x
  3. Step 3: Cross multiply
    567,776.28x = 783,536.22 × 313,136.28
  4. Step 4: Simplify right side
    567,776.28x = 245,353,617,176.06
  5. Step 5: Solve for x
    x = 245,353,617,176.06/567,776.28
  6. Step 6: Final answer
    x = 432,130.80

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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.