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Finding the Fourth Proportional to 567,798.20, 783,579.02 and 326,129.25

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Solution

The fourth proportional to 567,798.20, 783,579.02 and 326,129.25 is: 450,068.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,798.20 : 783,579.02 = 326,129.25 : x
  2. Step 2: Convert to fraction form
    567,798.20/783,579.02 = 326,129.25/x
  3. Step 3: Cross multiply
    567,798.20x = 783,579.02 × 326,129.25
  4. Step 4: Simplify right side
    567,798.20x = 255,548,038,108.34
  5. Step 5: Solve for x
    x = 255,548,038,108.34/567,798.20
  6. Step 6: Final answer
    x = 450,068.42

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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.