Home / 1,445,139-1,994,404.20-800,618.76

Finding the Fourth Proportional to 1,445,139, 1,994,404.20 and 800,618.76

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Solution

The fourth proportional to 1,445,139, 1,994,404.20 and 800,618.76 is: 1,104,916.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,445,139 : 1,994,404.20 = 800,618.76 : x
  2. Step 2: Convert to fraction form
    1,445,139/1,994,404.20 = 800,618.76/x
  3. Step 3: Cross multiply
    1,445,139x = 1,994,404.20 × 800,618.76
  4. Step 4: Simplify right side
    1,445,139x = 1,596,757,417,542.79
  5. Step 5: Solve for x
    x = 1,596,757,417,542.79/1,445,139
  6. Step 6: Final answer
    x = 1,104,916.15

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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.