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Finding the Fourth Proportional to 874,329.76, 1,311,671.45 and 368,892

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Solution

The fourth proportional to 874,329.76, 1,311,671.45 and 368,892 is: 553,412.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,329.76 : 1,311,671.45 = 368,892 : x
  2. Step 2: Convert to fraction form
    874,329.76/1,311,671.45 = 368,892/x
  3. Step 3: Cross multiply
    874,329.76x = 1,311,671.45 × 368,892
  4. Step 4: Simplify right side
    874,329.76x = 483,865,104,533.40
  5. Step 5: Solve for x
    x = 483,865,104,533.40/874,329.76
  6. Step 6: Final answer
    x = 553,412.60

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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.