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Finding the Fourth Proportional to 482,678.40, 724,017.60 and 370,922.70

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Solution

The fourth proportional to 482,678.40, 724,017.60 and 370,922.70 is: 556,384.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,678.40 : 724,017.60 = 370,922.70 : x
  2. Step 2: Convert to fraction form
    482,678.40/724,017.60 = 370,922.70/x
  3. Step 3: Cross multiply
    482,678.40x = 724,017.60 × 370,922.70
  4. Step 4: Simplify right side
    482,678.40x = 268,554,563,039.52
  5. Step 5: Solve for x
    x = 268,554,563,039.52/482,678.40
  6. Step 6: Final answer
    x = 556,384.05

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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.