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Finding the Fourth Proportional to 554,506.70, 831,181.16 and 402,336.14

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Solution

The fourth proportional to 554,506.70, 831,181.16 and 402,336.14 is: 603,084.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,506.70 : 831,181.16 = 402,336.14 : x
  2. Step 2: Convert to fraction form
    554,506.70/831,181.16 = 402,336.14/x
  3. Step 3: Cross multiply
    554,506.70x = 831,181.16 × 402,336.14
  4. Step 4: Simplify right side
    554,506.70x = 334,414,219,555.12
  5. Step 5: Solve for x
    x = 334,414,219,555.12/554,506.70
  6. Step 6: Final answer
    x = 603,084.18

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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.