Home / 1,209,405.76-1,668,992.46-693,148.47

Finding the Fourth Proportional to 1,209,405.76, 1,668,992.46 and 693,148.47

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Solution

The fourth proportional to 1,209,405.76, 1,668,992.46 and 693,148.47 is: 956,552.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,405.76 : 1,668,992.46 = 693,148.47 : x
  2. Step 2: Convert to fraction form
    1,209,405.76/1,668,992.46 = 693,148.47/x
  3. Step 3: Cross multiply
    1,209,405.76x = 1,668,992.46 × 693,148.47
  4. Step 4: Simplify right side
    1,209,405.76x = 1,156,859,570,090.54
  5. Step 5: Solve for x
    x = 1,156,859,570,090.54/1,209,405.76
  6. Step 6: Final answer
    x = 956,552.06

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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.