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Finding the Fourth Proportional to 579,186.18, 798,802.98 and 407,671.92

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Solution

The fourth proportional to 579,186.18, 798,802.98 and 407,671.92 is: 562,253.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,186.18 : 798,802.98 = 407,671.92 : x
  2. Step 2: Convert to fraction form
    579,186.18/798,802.98 = 407,671.92/x
  3. Step 3: Cross multiply
    579,186.18x = 798,802.98 × 407,671.92
  4. Step 4: Simplify right side
    579,186.18x = 325,649,544,558.32
  5. Step 5: Solve for x
    x = 325,649,544,558.32/579,186.18
  6. Step 6: Final answer
    x = 562,253.65

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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.