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Finding the Fourth Proportional to 528,094.43, 728,770.51 and 286,376.94

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Solution

The fourth proportional to 528,094.43, 728,770.51 and 286,376.94 is: 395,200.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,094.43 : 728,770.51 = 286,376.94 : x
  2. Step 2: Convert to fraction form
    528,094.43/728,770.51 = 286,376.94/x
  3. Step 3: Cross multiply
    528,094.43x = 728,770.51 × 286,376.94
  4. Step 4: Simplify right side
    528,094.43x = 208,703,066,078.17
  5. Step 5: Solve for x
    x = 208,703,066,078.17/528,094.43
  6. Step 6: Final answer
    x = 395,200.28

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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.