Home / 690,319.20-952,756.65-445,235.07

Finding the Fourth Proportional to 690,319.20, 952,756.65 and 445,235.07

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Solution

The fourth proportional to 690,319.20, 952,756.65 and 445,235.07 is: 614,499.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,319.20 : 952,756.65 = 445,235.07 : x
  2. Step 2: Convert to fraction form
    690,319.20/952,756.65 = 445,235.07/x
  3. Step 3: Cross multiply
    690,319.20x = 952,756.65 × 445,235.07
  4. Step 4: Simplify right side
    690,319.20x = 424,200,673,755.72
  5. Step 5: Solve for x
    x = 424,200,673,755.72/690,319.20
  6. Step 6: Final answer
    x = 614,499.31

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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.