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Finding the Fourth Proportional to 584,955.72, 807,255.45 and 330,345.18

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Solution

The fourth proportional to 584,955.72, 807,255.45 and 330,345.18 is: 455,885.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,955.72 : 807,255.45 = 330,345.18 : x
  2. Step 2: Convert to fraction form
    584,955.72/807,255.45 = 330,345.18/x
  3. Step 3: Cross multiply
    584,955.72x = 807,255.45 × 330,345.18
  4. Step 4: Simplify right side
    584,955.72x = 266,672,946,936.23
  5. Step 5: Solve for x
    x = 266,672,946,936.23/584,955.72
  6. Step 6: Final answer
    x = 455,885.70

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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.