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Finding the Fourth Proportional to 529,468.96, 730,668.80 and 303,116.16

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Solution

The fourth proportional to 529,468.96, 730,668.80 and 303,116.16 is: 418,301.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,468.96 : 730,668.80 = 303,116.16 : x
  2. Step 2: Convert to fraction form
    529,468.96/730,668.80 = 303,116.16/x
  3. Step 3: Cross multiply
    529,468.96x = 730,668.80 × 303,116.16
  4. Step 4: Simplify right side
    529,468.96x = 221,477,520,887.81
  5. Step 5: Solve for x
    x = 221,477,520,887.81/529,468.96
  6. Step 6: Final answer
    x = 418,301.24

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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.