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Finding the Fourth Proportional to 624,006.34, 934,172.43 and 386,585.62

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Solution

The fourth proportional to 624,006.34, 934,172.43 and 386,585.62 is: 578,740.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,006.34 : 934,172.43 = 386,585.62 : x
  2. Step 2: Convert to fraction form
    624,006.34/934,172.43 = 386,585.62/x
  3. Step 3: Cross multiply
    624,006.34x = 934,172.43 × 386,585.62
  4. Step 4: Simplify right side
    624,006.34x = 361,137,628,038.46
  5. Step 5: Solve for x
    x = 361,137,628,038.46/624,006.34
  6. Step 6: Final answer
    x = 578,740.32

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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.