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Finding the Fourth Proportional to 438,124.64, 604,607.64 and 247,200.08

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Solution

The fourth proportional to 438,124.64, 604,607.64 and 247,200.08 is: 341,133.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,124.64 : 604,607.64 = 247,200.08 : x
  2. Step 2: Convert to fraction form
    438,124.64/604,607.64 = 247,200.08/x
  3. Step 3: Cross multiply
    438,124.64x = 604,607.64 × 247,200.08
  4. Step 4: Simplify right side
    438,124.64x = 149,459,056,976.61
  5. Step 5: Solve for x
    x = 149,459,056,976.61/438,124.64
  6. Step 6: Final answer
    x = 341,133.65

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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.