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Finding the Fourth Proportional to 1,036,893, 1,430,912.40 and 559,965

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Solution

The fourth proportional to 1,036,893, 1,430,912.40 and 559,965 is: 772,751.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036,893 : 1,430,912.40 = 559,965 : x
  2. Step 2: Convert to fraction form
    1,036,893/1,430,912.40 = 559,965/x
  3. Step 3: Cross multiply
    1,036,893x = 1,430,912.40 × 559,965
  4. Step 4: Simplify right side
    1,036,893x = 801,260,862,066
  5. Step 5: Solve for x
    x = 801,260,862,066/1,036,893
  6. Step 6: Final answer
    x = 772,751.73

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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.