Home / 939,386.58-1,408,467.51-399,362.82

Finding the Fourth Proportional to 939,386.58, 1,408,467.51 and 399,362.82

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Solution

The fourth proportional to 939,386.58, 1,408,467.51 and 399,362.82 is: 598,783.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,386.58 : 1,408,467.51 = 399,362.82 : x
  2. Step 2: Convert to fraction form
    939,386.58/1,408,467.51 = 399,362.82/x
  3. Step 3: Cross multiply
    939,386.58x = 1,408,467.51 × 399,362.82
  4. Step 4: Simplify right side
    939,386.58x = 562,489,556,671.98
  5. Step 5: Solve for x
    x = 562,489,556,671.98/939,386.58
  6. Step 6: Final answer
    x = 598,783.90

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1.5x scale

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.