Home / 866,175.90-1,298,389.05-393,200.70

Finding the Fourth Proportional to 866,175.90, 1,298,389.05 and 393,200.70

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Solution

The fourth proportional to 866,175.90, 1,298,389.05 and 393,200.70 is: 589,403.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,175.90 : 1,298,389.05 = 393,200.70 : x
  2. Step 2: Convert to fraction form
    866,175.90/1,298,389.05 = 393,200.70/x
  3. Step 3: Cross multiply
    866,175.90x = 1,298,389.05 × 393,200.70
  4. Step 4: Simplify right side
    866,175.90x = 510,527,483,332.34
  5. Step 5: Solve for x
    x = 510,527,483,332.34/866,175.90
  6. Step 6: Final answer
    x = 589,403.93

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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.