Home / 1,319,201.80-1,977,938.70-520,001.80

Finding the Fourth Proportional to 1,319,201.80, 1,977,938.70 and 520,001.80

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Solution

The fourth proportional to 1,319,201.80, 1,977,938.70 and 520,001.80 is: 779,662.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,201.80 : 1,977,938.70 = 520,001.80 : x
  2. Step 2: Convert to fraction form
    1,319,201.80/1,977,938.70 = 520,001.80/x
  3. Step 3: Cross multiply
    1,319,201.80x = 1,977,938.70 × 520,001.80
  4. Step 4: Simplify right side
    1,319,201.80x = 1,028,531,684,289.66
  5. Step 5: Solve for x
    x = 1,028,531,684,289.66/1,319,201.80
  6. Step 6: Final answer
    x = 779,662.13

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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.