Home / 433,515.60-649,351.80-284,216.40

Finding the Fourth Proportional to 433,515.60, 649,351.80 and 284,216.40

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Solution

The fourth proportional to 433,515.60, 649,351.80 and 284,216.40 is: 425,720.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,515.60 : 649,351.80 = 284,216.40 : x
  2. Step 2: Convert to fraction form
    433,515.60/649,351.80 = 284,216.40/x
  3. Step 3: Cross multiply
    433,515.60x = 649,351.80 × 284,216.40
  4. Step 4: Simplify right side
    433,515.60x = 184,556,430,929.52
  5. Step 5: Solve for x
    x = 184,556,430,929.52/433,515.60
  6. Step 6: Final answer
    x = 425,720.39

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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.