Home / 705,621.89-973,762.18-383,332.75

Finding the Fourth Proportional to 705,621.89, 973,762.18 and 383,332.75

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Solution

The fourth proportional to 705,621.89, 973,762.18 and 383,332.75 is: 529,001.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,621.89 : 973,762.18 = 383,332.75 : x
  2. Step 2: Convert to fraction form
    705,621.89/973,762.18 = 383,332.75/x
  3. Step 3: Cross multiply
    705,621.89x = 973,762.18 × 383,332.75
  4. Step 4: Simplify right side
    705,621.89x = 373,274,930,912.66
  5. Step 5: Solve for x
    x = 373,274,930,912.66/705,621.89
  6. Step 6: Final answer
    x = 529,001.35

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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.