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Finding the Fourth Proportional to 567,492.16, 783,144.36 and 312,852.48

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Solution

The fourth proportional to 567,492.16, 783,144.36 and 312,852.48 is: 431,739.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,492.16 : 783,144.36 = 312,852.48 : x
  2. Step 2: Convert to fraction form
    567,492.16/783,144.36 = 312,852.48/x
  3. Step 3: Cross multiply
    567,492.16x = 783,144.36 × 312,852.48
  4. Step 4: Simplify right side
    567,492.16x = 245,008,655,224.01
  5. Step 5: Solve for x
    x = 245,008,655,224.01/567,492.16
  6. Step 6: Final answer
    x = 431,739.28

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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.