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Finding the Fourth Proportional to 438,503.34, 604,815.12 and 335,370.48

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Solution

The fourth proportional to 438,503.34, 604,815.12 and 335,370.48 is: 462,566.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,503.34 : 604,815.12 = 335,370.48 : x
  2. Step 2: Convert to fraction form
    438,503.34/604,815.12 = 335,370.48/x
  3. Step 3: Cross multiply
    438,503.34x = 604,815.12 × 335,370.48
  4. Step 4: Simplify right side
    438,503.34x = 202,837,137,105.66
  5. Step 5: Solve for x
    x = 202,837,137,105.66/438,503.34
  6. Step 6: Final answer
    x = 462,566.91

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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.