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Finding the Fourth Proportional to 909,969.30, 1,364,953.95 and 909,969.30

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Solution

The fourth proportional to 909,969.30, 1,364,953.95 and 909,969.30 is: 1,364,953.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,969.30 : 1,364,953.95 = 909,969.30 : x
  2. Step 2: Convert to fraction form
    909,969.30/1,364,953.95 = 909,969.30/x
  3. Step 3: Cross multiply
    909,969.30x = 1,364,953.95 × 909,969.30
  4. Step 4: Simplify right side
    909,969.30x = 1,242,066,190,413.74
  5. Step 5: Solve for x
    x = 1,242,066,190,413.74/909,969.30
  6. Step 6: Final answer
    x = 1,364,953.95

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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.