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Finding the Fourth Proportional to 545,803.83, 752,698.40 and 431,355.89

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Solution

The fourth proportional to 545,803.83, 752,698.40 and 431,355.89 is: 594,867.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,803.83 : 752,698.40 = 431,355.89 : x
  2. Step 2: Convert to fraction form
    545,803.83/752,698.40 = 431,355.89/x
  3. Step 3: Cross multiply
    545,803.83x = 752,698.40 × 431,355.89
  4. Step 4: Simplify right side
    545,803.83x = 324,680,888,233.58
  5. Step 5: Solve for x
    x = 324,680,888,233.58/545,803.83
  6. Step 6: Final answer
    x = 594,867.37

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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.