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Finding the Fourth Proportional to 604,966,410.40, 907,449,615.60 and 298,405,386.40

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Solution

The fourth proportional to 604,966,410.40, 907,449,615.60 and 298,405,386.40 is: 447,608,079.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,966,410.40 : 907,449,615.60 = 298,405,386.40 : x
  2. Step 2: Convert to fraction form
    604,966,410.40/907,449,615.60 = 298,405,386.40/x
  3. Step 3: Cross multiply
    604,966,410.40x = 907,449,615.60 × 298,405,386.40
  4. Step 4: Simplify right side
    604,966,410.40x = 270,787,853,181,649,440
  5. Step 5: Solve for x
    x = 270,787,853,181,649,440/604,966,410.40
  6. Step 6: Final answer
    x = 447,608,079.60

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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.