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Finding the Fourth Proportional to 545,805.58, 752,700.82 and 431,357.64

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Solution

The fourth proportional to 545,805.58, 752,700.82 and 431,357.64 is: 594,869.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,805.58 : 752,700.82 = 431,357.64 : x
  2. Step 2: Convert to fraction form
    545,805.58/752,700.82 = 431,357.64/x
  3. Step 3: Cross multiply
    545,805.58x = 752,700.82 × 431,357.64
  4. Step 4: Simplify right side
    545,805.58x = 324,683,249,341.27
  5. Step 5: Solve for x
    x = 324,683,249,341.27/545,805.58
  6. Step 6: Final answer
    x = 594,869.79

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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.