Home / 1,405,873.56-1,940,102-761,293.70

Finding the Fourth Proportional to 1,405,873.56, 1,940,102 and 761,293.70

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Solution

The fourth proportional to 1,405,873.56, 1,940,102 and 761,293.70 is: 1,050,583.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,873.56 : 1,940,102 = 761,293.70 : x
  2. Step 2: Convert to fraction form
    1,405,873.56/1,940,102 = 761,293.70/x
  3. Step 3: Cross multiply
    1,405,873.56x = 1,940,102 × 761,293.70
  4. Step 4: Simplify right side
    1,405,873.56x = 1,476,987,429,957.40
  5. Step 5: Solve for x
    x = 1,476,987,429,957.40/1,405,873.56
  6. Step 6: Final answer
    x = 1,050,583.40

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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.