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Finding the Fourth Proportional to 1,326,753.50, 1,830,899.57 and 745,977.15

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Solution

The fourth proportional to 1,326,753.50, 1,830,899.57 and 745,977.15 is: 1,029,437.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,753.50 : 1,830,899.57 = 745,977.15 : x
  2. Step 2: Convert to fraction form
    1,326,753.50/1,830,899.57 = 745,977.15/x
  3. Step 3: Cross multiply
    1,326,753.50x = 1,830,899.57 × 745,977.15
  4. Step 4: Simplify right side
    1,326,753.50x = 1,365,809,239,434.94
  5. Step 5: Solve for x
    x = 1,365,809,239,434.94/1,326,753.50
  6. Step 6: Final answer
    x = 1,029,437.08

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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.