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Finding the Fourth Proportional to 623,999.69, 935,425.44 and 339,274.16

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Solution

The fourth proportional to 623,999.69, 935,425.44 and 339,274.16 is: 508,599.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,999.69 : 935,425.44 = 339,274.16 : x
  2. Step 2: Convert to fraction form
    623,999.69/935,425.44 = 339,274.16/x
  3. Step 3: Cross multiply
    623,999.69x = 935,425.44 × 339,274.16
  4. Step 4: Simplify right side
    623,999.69x = 317,365,680,398.63
  5. Step 5: Solve for x
    x = 317,365,680,398.63/623,999.69
  6. Step 6: Final answer
    x = 508,599.10

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1.5x scale

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.