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Finding the Fourth Proportional to 388,712.14, 583,114.93 and 367,454.50

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Solution

The fourth proportional to 388,712.14, 583,114.93 and 367,454.50 is: 551,225.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,712.14 : 583,114.93 = 367,454.50 : x
  2. Step 2: Convert to fraction form
    388,712.14/583,114.93 = 367,454.50/x
  3. Step 3: Cross multiply
    388,712.14x = 583,114.93 × 367,454.50
  4. Step 4: Simplify right side
    388,712.14x = 214,268,205,045.69
  5. Step 5: Solve for x
    x = 214,268,205,045.69/388,712.14
  6. Step 6: Final answer
    x = 551,225.92

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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.