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Finding the Fourth Proportional to 585,696.40, 877,540.68 and 393,210.32

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Solution

The fourth proportional to 585,696.40, 877,540.68 and 393,210.32 is: 589,141.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,696.40 : 877,540.68 = 393,210.32 : x
  2. Step 2: Convert to fraction form
    585,696.40/877,540.68 = 393,210.32/x
  3. Step 3: Cross multiply
    585,696.40x = 877,540.68 × 393,210.32
  4. Step 4: Simplify right side
    585,696.40x = 345,058,051,595.82
  5. Step 5: Solve for x
    x = 345,058,051,595.82/585,696.40
  6. Step 6: Final answer
    x = 589,141.49

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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.