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Finding the Fourth Proportional to 209,550.30, 314,325.45 and 190,851.45

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Solution

The fourth proportional to 209,550.30, 314,325.45 and 190,851.45 is: 286,277.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,550.30 : 314,325.45 = 190,851.45 : x
  2. Step 2: Convert to fraction form
    209,550.30/314,325.45 = 190,851.45/x
  3. Step 3: Cross multiply
    209,550.30x = 314,325.45 × 190,851.45
  4. Step 4: Simplify right side
    209,550.30x = 59,989,467,904.40
  5. Step 5: Solve for x
    x = 59,989,467,904.40/209,550.30
  6. Step 6: Final answer
    x = 286,277.18

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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.