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Finding the Fourth Proportional to 469,999.32, 648,599.88 and 255,139.53

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Solution

The fourth proportional to 469,999.32, 648,599.88 and 255,139.53 is: 352,093.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,999.32 : 648,599.88 = 255,139.53 : x
  2. Step 2: Convert to fraction form
    469,999.32/648,599.88 = 255,139.53/x
  3. Step 3: Cross multiply
    469,999.32x = 648,599.88 × 255,139.53
  4. Step 4: Simplify right side
    469,999.32x = 165,483,468,541.26
  5. Step 5: Solve for x
    x = 165,483,468,541.26/469,999.32
  6. Step 6: Final answer
    x = 352,093.00

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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.