Home / 1,393,173.83-1,922,595.95-772,990.65

Finding the Fourth Proportional to 1,393,173.83, 1,922,595.95 and 772,990.65

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Solution

The fourth proportional to 1,393,173.83, 1,922,595.95 and 772,990.65 is: 1,066,736.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393,173.83 : 1,922,595.95 = 772,990.65 : x
  2. Step 2: Convert to fraction form
    1,393,173.83/1,922,595.95 = 772,990.65/x
  3. Step 3: Cross multiply
    1,393,173.83x = 1,922,595.95 × 772,990.65
  4. Step 4: Simplify right side
    1,393,173.83x = 1,486,148,695,010.34
  5. Step 5: Solve for x
    x = 1,486,148,695,010.34/1,393,173.83
  6. Step 6: Final answer
    x = 1,066,736.01

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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.