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Finding the Fourth Proportional to 450,069.94, 675,437.21 and 213,413.45

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Solution

The fourth proportional to 450,069.94, 675,437.21 and 213,413.45 is: 320,277.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,069.94 : 675,437.21 = 213,413.45 : x
  2. Step 2: Convert to fraction form
    450,069.94/675,437.21 = 213,413.45/x
  3. Step 3: Cross multiply
    450,069.94x = 675,437.21 × 213,413.45
  4. Step 4: Simplify right side
    450,069.94x = 144,147,386,666.30
  5. Step 5: Solve for x
    x = 144,147,386,666.30/450,069.94
  6. Step 6: Final answer
    x = 320,277.75

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1.5x scale

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.