Home / 935,239.40-1,290,629.65-505,519.52

Finding the Fourth Proportional to 935,239.40, 1,290,629.65 and 505,519.52

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Solution

The fourth proportional to 935,239.40, 1,290,629.65 and 505,519.52 is: 697,616.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,239.40 : 1,290,629.65 = 505,519.52 : x
  2. Step 2: Convert to fraction form
    935,239.40/1,290,629.65 = 505,519.52/x
  3. Step 3: Cross multiply
    935,239.40x = 1,290,629.65 × 505,519.52
  4. Step 4: Simplify right side
    935,239.40x = 652,438,478,638.17
  5. Step 5: Solve for x
    x = 652,438,478,638.17/935,239.40
  6. Step 6: Final answer
    x = 697,616.55

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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.