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Finding the Fourth Proportional to 1,036,878, 1,430,891.64 and 559,950

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Solution

The fourth proportional to 1,036,878, 1,430,891.64 and 559,950 is: 772,731

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036,878 : 1,430,891.64 = 559,950 : x
  2. Step 2: Convert to fraction form
    1,036,878/1,430,891.64 = 559,950/x
  3. Step 3: Cross multiply
    1,036,878x = 1,430,891.64 × 559,950
  4. Step 4: Simplify right side
    1,036,878x = 801,227,773,818
  5. Step 5: Solve for x
    x = 801,227,773,818/1,036,878
  6. Step 6: Final answer
    x = 772,731

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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.