Home / 935,284.56-1,290,698.64-505,563.72

Finding the Fourth Proportional to 935,284.56, 1,290,698.64 and 505,563.72

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Solution

The fourth proportional to 935,284.56, 1,290,698.64 and 505,563.72 is: 697,681.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,284.56 : 1,290,698.64 = 505,563.72 : x
  2. Step 2: Convert to fraction form
    935,284.56/1,290,698.64 = 505,563.72/x
  3. Step 3: Cross multiply
    935,284.56x = 1,290,698.64 × 505,563.72
  4. Step 4: Simplify right side
    935,284.56x = 652,530,405,837.34
  5. Step 5: Solve for x
    x = 652,530,405,837.34/935,284.56
  6. Step 6: Final answer
    x = 697,681.15

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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.