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Finding the Fourth Proportional to 555,068.64, 831,857.04 and 288,274.08

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Solution

The fourth proportional to 555,068.64, 831,857.04 and 288,274.08 is: 432,023.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,068.64 : 831,857.04 = 288,274.08 : x
  2. Step 2: Convert to fraction form
    555,068.64/831,857.04 = 288,274.08/x
  3. Step 3: Cross multiply
    555,068.64x = 831,857.04 × 288,274.08
  4. Step 4: Simplify right side
    555,068.64x = 239,802,822,897.52
  5. Step 5: Solve for x
    x = 239,802,822,897.52/555,068.64
  6. Step 6: Final answer
    x = 432,023.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.