Home / 1,586,420.16-2,378,813.76-639,536.64

Finding the Fourth Proportional to 1,586,420.16, 2,378,813.76 and 639,536.64

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Solution

The fourth proportional to 1,586,420.16, 2,378,813.76 and 639,536.64 is: 958,975.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,586,420.16 : 2,378,813.76 = 639,536.64 : x
  2. Step 2: Convert to fraction form
    1,586,420.16/2,378,813.76 = 639,536.64/x
  3. Step 3: Cross multiply
    1,586,420.16x = 2,378,813.76 × 639,536.64
  4. Step 4: Simplify right side
    1,586,420.16x = 1,521,338,559,256.17
  5. Step 5: Solve for x
    x = 1,521,338,559,256.17/1,586,420.16
  6. Step 6: Final answer
    x = 958,975.81

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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.