Home / 1,403,011.82-1,934,865.12-919,401.32

Finding the Fourth Proportional to 1,403,011.82, 1,934,865.12 and 919,401.32

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Solution

The fourth proportional to 1,403,011.82, 1,934,865.12 and 919,401.32 is: 1,267,927.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,403,011.82 : 1,934,865.12 = 919,401.32 : x
  2. Step 2: Convert to fraction form
    1,403,011.82/1,934,865.12 = 919,401.32/x
  3. Step 3: Cross multiply
    1,403,011.82x = 1,934,865.12 × 919,401.32
  4. Step 4: Simplify right side
    1,403,011.82x = 1,778,917,545,349.96
  5. Step 5: Solve for x
    x = 1,778,917,545,349.96/1,403,011.82
  6. Step 6: Final answer
    x = 1,267,927.70

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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.