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Finding the Fourth Proportional to 468,483.48, 646,507.06 and 253,623.40

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Solution

The fourth proportional to 468,483.48, 646,507.06 and 253,623.40 is: 350,000.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,483.48 : 646,507.06 = 253,623.40 : x
  2. Step 2: Convert to fraction form
    468,483.48/646,507.06 = 253,623.40/x
  3. Step 3: Cross multiply
    468,483.48x = 646,507.06 × 253,623.40
  4. Step 4: Simplify right side
    468,483.48x = 163,969,318,681.20
  5. Step 5: Solve for x
    x = 163,969,318,681.20/468,483.48
  6. Step 6: Final answer
    x = 350,000.21

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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.