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Finding the Fourth Proportional to 438,030.16, 604,481.52 and 247,043.14

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Solution

The fourth proportional to 438,030.16, 604,481.52 and 247,043.14 is: 340,919.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,030.16 : 604,481.52 = 247,043.14 : x
  2. Step 2: Convert to fraction form
    438,030.16/604,481.52 = 247,043.14/x
  3. Step 3: Cross multiply
    438,030.16x = 604,481.52 × 247,043.14
  4. Step 4: Simplify right side
    438,030.16x = 149,333,012,772.77
  5. Step 5: Solve for x
    x = 149,333,012,772.77/438,030.16
  6. Step 6: Final answer
    x = 340,919.48

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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.