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Finding the Fourth Proportional to 586,386.77, 809,290.07 and 328,361.98

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Solution

The fourth proportional to 586,386.77, 809,290.07 and 328,361.98 is: 453,182.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,386.77 : 809,290.07 = 328,361.98 : x
  2. Step 2: Convert to fraction form
    586,386.77/809,290.07 = 328,361.98/x
  3. Step 3: Cross multiply
    586,386.77x = 809,290.07 × 328,361.98
  4. Step 4: Simplify right side
    586,386.77x = 265,740,084,091.28
  5. Step 5: Solve for x
    x = 265,740,084,091.28/586,386.77
  6. Step 6: Final answer
    x = 453,182.26

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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.