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Finding the Fourth Proportional to 543,953.40, 750,440.64 and 314,468.44

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Solution

The fourth proportional to 543,953.40, 750,440.64 and 314,468.44 is: 433,842.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,953.40 : 750,440.64 = 314,468.44 : x
  2. Step 2: Convert to fraction form
    543,953.40/750,440.64 = 314,468.44/x
  3. Step 3: Cross multiply
    543,953.40x = 750,440.64 × 314,468.44
  4. Step 4: Simplify right side
    543,953.40x = 235,989,897,373.40
  5. Step 5: Solve for x
    x = 235,989,897,373.40/543,953.40
  6. Step 6: Final answer
    x = 433,842.12

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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.