Home / 1,668,478.34-2,503,461.89-769,437.47

Finding the Fourth Proportional to 1,668,478.34, 2,503,461.89 and 769,437.47

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Solution

The fourth proportional to 1,668,478.34, 2,503,461.89 and 769,437.47 is: 1,154,499.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,668,478.34 : 2,503,461.89 = 769,437.47 : x
  2. Step 2: Convert to fraction form
    1,668,478.34/2,503,461.89 = 769,437.47/x
  3. Step 3: Cross multiply
    1,668,478.34x = 2,503,461.89 × 769,437.47
  4. Step 4: Simplify right side
    1,668,478.34x = 1,926,257,366,518.52
  5. Step 5: Solve for x
    x = 1,926,257,366,518.52/1,668,478.34
  6. Step 6: Final answer
    x = 1,154,499.48

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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.