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Finding the Fourth Proportional to 1,014,399, 1,399,870.62 and 561,690

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Solution

The fourth proportional to 1,014,399, 1,399,870.62 and 561,690 is: 775,132.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,014,399 : 1,399,870.62 = 561,690 : x
  2. Step 2: Convert to fraction form
    1,014,399/1,399,870.62 = 561,690/x
  3. Step 3: Cross multiply
    1,014,399x = 1,399,870.62 × 561,690
  4. Step 4: Simplify right side
    1,014,399x = 786,293,328,547.80
  5. Step 5: Solve for x
    x = 786,293,328,547.80/1,014,399
  6. Step 6: Final answer
    x = 775,132.20

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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.