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Finding the Fourth Proportional to 618,203.35, 853,412.83 and 414,387.43

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Solution

The fourth proportional to 618,203.35, 853,412.83 and 414,387.43 is: 572,050.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,203.35 : 853,412.83 = 414,387.43 : x
  2. Step 2: Convert to fraction form
    618,203.35/853,412.83 = 414,387.43/x
  3. Step 3: Cross multiply
    618,203.35x = 853,412.83 × 414,387.43
  4. Step 4: Simplify right side
    618,203.35x = 353,643,549,352.73
  5. Step 5: Solve for x
    x = 353,643,549,352.73/618,203.35
  6. Step 6: Final answer
    x = 572,050.52

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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.