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Finding the Fourth Proportional to 585,969.84, 879,042.51 and 212,080.32

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Solution

The fourth proportional to 585,969.84, 879,042.51 and 212,080.32 is: 318,152.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,969.84 : 879,042.51 = 212,080.32 : x
  2. Step 2: Convert to fraction form
    585,969.84/879,042.51 = 212,080.32/x
  3. Step 3: Cross multiply
    585,969.84x = 879,042.51 × 212,080.32
  4. Step 4: Simplify right side
    585,969.84x = 186,427,616,814.40
  5. Step 5: Solve for x
    x = 186,427,616,814.40/585,969.84
  6. Step 6: Final answer
    x = 318,152.24

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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.