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Finding the Fourth Proportional to 1,266,795.90, 1,900,517.85 and 893,547.90

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Solution

The fourth proportional to 1,266,795.90, 1,900,517.85 and 893,547.90 is: 1,340,550.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,266,795.90 : 1,900,517.85 = 893,547.90 : x
  2. Step 2: Convert to fraction form
    1,266,795.90/1,900,517.85 = 893,547.90/x
  3. Step 3: Cross multiply
    1,266,795.90x = 1,900,517.85 × 893,547.90
  4. Step 4: Simplify right side
    1,266,795.90x = 1,698,203,733,780.02
  5. Step 5: Solve for x
    x = 1,698,203,733,780.02/1,266,795.90
  6. Step 6: Final answer
    x = 1,340,550.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.