Home / 953,776.72-1,430,886.66-279,830.80

Finding the Fourth Proportional to 953,776.72, 1,430,886.66 and 279,830.80

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Solution

The fourth proportional to 953,776.72, 1,430,886.66 and 279,830.80 is: 419,811.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    953,776.72 : 1,430,886.66 = 279,830.80 : x
  2. Step 2: Convert to fraction form
    953,776.72/1,430,886.66 = 279,830.80/x
  3. Step 3: Cross multiply
    953,776.72x = 1,430,886.66 × 279,830.80
  4. Step 4: Simplify right side
    953,776.72x = 400,406,158,777.13
  5. Step 5: Solve for x
    x = 400,406,158,777.13/953,776.72
  6. Step 6: Final answer
    x = 419,811.21

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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.