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Finding the Fourth Proportional to 235,390.40, 353,085.60 and 216,036.80

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Solution

The fourth proportional to 235,390.40, 353,085.60 and 216,036.80 is: 324,055.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,390.40 : 353,085.60 = 216,036.80 : x
  2. Step 2: Convert to fraction form
    235,390.40/353,085.60 = 216,036.80/x
  3. Step 3: Cross multiply
    235,390.40x = 353,085.60 × 216,036.80
  4. Step 4: Simplify right side
    235,390.40x = 76,279,483,150.08
  5. Step 5: Solve for x
    x = 76,279,483,150.08/235,390.40
  6. Step 6: Final answer
    x = 324,055.20

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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.