Home / 318,923.69-440,115.77-175,683.39

Finding the Fourth Proportional to 318,923.69, 440,115.77 and 175,683.39

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Solution

The fourth proportional to 318,923.69, 440,115.77 and 175,683.39 is: 242,443.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,923.69 : 440,115.77 = 175,683.39 : x
  2. Step 2: Convert to fraction form
    318,923.69/440,115.77 = 175,683.39/x
  3. Step 3: Cross multiply
    318,923.69x = 440,115.77 × 175,683.39
  4. Step 4: Simplify right side
    318,923.69x = 77,321,029,254.83
  5. Step 5: Solve for x
    x = 77,321,029,254.83/318,923.69
  6. Step 6: Final answer
    x = 242,443.67

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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.