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Finding the Fourth Proportional to 659,964.14, 910,764.15 and 373,484.15

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Solution

The fourth proportional to 659,964.14, 910,764.15 and 373,484.15 is: 515,415.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,964.14 : 910,764.15 = 373,484.15 : x
  2. Step 2: Convert to fraction form
    659,964.14/910,764.15 = 373,484.15/x
  3. Step 3: Cross multiply
    659,964.14x = 910,764.15 × 373,484.15
  4. Step 4: Simplify right side
    659,964.14x = 340,155,974,413.22
  5. Step 5: Solve for x
    x = 340,155,974,413.22/659,964.14
  6. Step 6: Final answer
    x = 515,415.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.