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Finding the Fourth Proportional to 478,509.84, 717,875.82 and 162,969.48

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Solution

The fourth proportional to 478,509.84, 717,875.82 and 162,969.48 is: 244,492.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,509.84 : 717,875.82 = 162,969.48 : x
  2. Step 2: Convert to fraction form
    478,509.84/717,875.82 = 162,969.48/x
  3. Step 3: Cross multiply
    478,509.84x = 717,875.82 × 162,969.48
  4. Step 4: Simplify right side
    478,509.84x = 116,991,849,089.97
  5. Step 5: Solve for x
    x = 116,991,849,089.97/478,509.84
  6. Step 6: Final answer
    x = 244,492.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.