Home / 1,129,140.62-1,558,207.41-612,904.76

Finding the Fourth Proportional to 1,129,140.62, 1,558,207.41 and 612,904.76

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Solution

The fourth proportional to 1,129,140.62, 1,558,207.41 and 612,904.76 is: 845,804.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,140.62 : 1,558,207.41 = 612,904.76 : x
  2. Step 2: Convert to fraction form
    1,129,140.62/1,558,207.41 = 612,904.76/x
  3. Step 3: Cross multiply
    1,129,140.62x = 1,558,207.41 × 612,904.76
  4. Step 4: Simplify right side
    1,129,140.62x = 955,032,738,656.27
  5. Step 5: Solve for x
    x = 955,032,738,656.27/1,129,140.62
  6. Step 6: Final answer
    x = 845,804.96

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1.5x scale

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.