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Finding the Fourth Proportional to 956,657, 1,320,090.88 and 589,075.22

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Solution

The fourth proportional to 956,657, 1,320,090.88 and 589,075.22 is: 812,864.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    956,657 : 1,320,090.88 = 589,075.22 : x
  2. Step 2: Convert to fraction form
    956,657/1,320,090.88 = 589,075.22/x
  3. Step 3: Cross multiply
    956,657x = 1,320,090.88 × 589,075.22
  4. Step 4: Simplify right side
    956,657x = 777,632,825,555.99
  5. Step 5: Solve for x
    x = 777,632,825,555.99/956,657
  6. Step 6: Final answer
    x = 812,864.83

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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.