Home / 662,248,987.20-993,373,480.80-317,024,913.60

Finding the Fourth Proportional to 662,248,987.20, 993,373,480.80 and 317,024,913.60

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Solution

The fourth proportional to 662,248,987.20, 993,373,480.80 and 317,024,913.60 is: 475,537,370.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,248,987.20 : 993,373,480.80 = 317,024,913.60 : x
  2. Step 2: Convert to fraction form
    662,248,987.20/993,373,480.80 = 317,024,913.60/x
  3. Step 3: Cross multiply
    662,248,987.20x = 993,373,480.80 × 317,024,913.60
  4. Step 4: Simplify right side
    662,248,987.20x = 314,924,141,923,151,296
  5. Step 5: Solve for x
    x = 314,924,141,923,151,296/662,248,987.20
  6. Step 6: Final answer
    x = 475,537,370.40

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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.