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Finding the Fourth Proportional to 457,802.61, 631,638.74 and 360,705.44

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Solution

The fourth proportional to 457,802.61, 631,638.74 and 360,705.44 is: 497,671.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,802.61 : 631,638.74 = 360,705.44 : x
  2. Step 2: Convert to fraction form
    457,802.61/631,638.74 = 360,705.44/x
  3. Step 3: Cross multiply
    457,802.61x = 631,638.74 × 360,705.44
  4. Step 4: Simplify right side
    457,802.61x = 227,835,529,632.75
  5. Step 5: Solve for x
    x = 227,835,529,632.75/457,802.61
  6. Step 6: Final answer
    x = 497,671.98

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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.