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Finding the Fourth Proportional to 907,751.40, 1,361,627.10 and 242,903.40

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Solution

The fourth proportional to 907,751.40, 1,361,627.10 and 242,903.40 is: 364,355.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,751.40 : 1,361,627.10 = 242,903.40 : x
  2. Step 2: Convert to fraction form
    907,751.40/1,361,627.10 = 242,903.40/x
  3. Step 3: Cross multiply
    907,751.40x = 1,361,627.10 × 242,903.40
  4. Step 4: Simplify right side
    907,751.40x = 330,743,852,122.14
  5. Step 5: Solve for x
    x = 330,743,852,122.14/907,751.40
  6. Step 6: Final answer
    x = 364,355.10

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Double scale
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Similar ratio
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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.