Home / 1,319,027.40-1,978,152.30-520,043.40

Finding the Fourth Proportional to 1,319,027.40, 1,978,152.30 and 520,043.40

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Solution

The fourth proportional to 1,319,027.40, 1,978,152.30 and 520,043.40 is: 779,911.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,027.40 : 1,978,152.30 = 520,043.40 : x
  2. Step 2: Convert to fraction form
    1,319,027.40/1,978,152.30 = 520,043.40/x
  3. Step 3: Cross multiply
    1,319,027.40x = 1,978,152.30 × 520,043.40
  4. Step 4: Simplify right side
    1,319,027.40x = 1,028,725,047,809.82
  5. Step 5: Solve for x
    x = 1,028,725,047,809.82/1,319,027.40
  6. Step 6: Final answer
    x = 779,911.81

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