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Finding the Fourth Proportional to 567,457.48, 783,146.55 and 423,968.41

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Solution

The fourth proportional to 567,457.48, 783,146.55 and 423,968.41 is: 585,117.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,457.48 : 783,146.55 = 423,968.41 : x
  2. Step 2: Convert to fraction form
    567,457.48/783,146.55 = 423,968.41/x
  3. Step 3: Cross multiply
    567,457.48x = 783,146.55 × 423,968.41
  4. Step 4: Simplify right side
    567,457.48x = 332,029,397,600.49
  5. Step 5: Solve for x
    x = 332,029,397,600.49/567,457.48
  6. Step 6: Final answer
    x = 585,117.67

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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.