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Finding the Fourth Proportional to 468,731.61, 702,157.01 and 215,659.53

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Solution

The fourth proportional to 468,731.61, 702,157.01 and 215,659.53 is: 323,056.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,731.61 : 702,157.01 = 215,659.53 : x
  2. Step 2: Convert to fraction form
    468,731.61/702,157.01 = 215,659.53/x
  3. Step 3: Cross multiply
    468,731.61x = 702,157.01 × 215,659.53
  4. Step 4: Simplify right side
    468,731.61x = 151,426,849,684.51
  5. Step 5: Solve for x
    x = 151,426,849,684.51/468,731.61
  6. Step 6: Final answer
    x = 323,056.62

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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.