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Finding the Fourth Proportional to 438,412.32, 604,996.74 and 247,443.48

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Solution

The fourth proportional to 438,412.32, 604,996.74 and 247,443.48 is: 341,465.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,412.32 : 604,996.74 = 247,443.48 : x
  2. Step 2: Convert to fraction form
    438,412.32/604,996.74 = 247,443.48/x
  3. Step 3: Cross multiply
    438,412.32x = 604,996.74 × 247,443.48
  4. Step 4: Simplify right side
    438,412.32x = 149,702,498,734.26
  5. Step 5: Solve for x
    x = 149,702,498,734.26/438,412.32
  6. Step 6: Final answer
    x = 341,465.08

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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.