Home / 1,319,353.60-1,979,030.40-913,446.40

Finding the Fourth Proportional to 1,319,353.60, 1,979,030.40 and 913,446.40

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Solution

The fourth proportional to 1,319,353.60, 1,979,030.40 and 913,446.40 is: 1,370,169.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,353.60 : 1,979,030.40 = 913,446.40 : x
  2. Step 2: Convert to fraction form
    1,319,353.60/1,979,030.40 = 913,446.40/x
  3. Step 3: Cross multiply
    1,319,353.60x = 1,979,030.40 × 913,446.40
  4. Step 4: Simplify right side
    1,319,353.60x = 1,807,738,194,370.56
  5. Step 5: Solve for x
    x = 1,807,738,194,370.56/1,319,353.60
  6. Step 6: Final answer
    x = 1,370,169.60

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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.