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Finding the Fourth Proportional to 996,454,479.60, 1,494,681,719.40 and 990,714,916.80

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Solution

The fourth proportional to 996,454,479.60, 1,494,681,719.40 and 990,714,916.80 is: 1,486,072,375.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,454,479.60 : 1,494,681,719.40 = 990,714,916.80 : x
  2. Step 2: Convert to fraction form
    996,454,479.60/1,494,681,719.40 = 990,714,916.80/x
  3. Step 3: Cross multiply
    996,454,479.60x = 1,494,681,719.40 × 990,714,916.80
  4. Step 4: Simplify right side
    996,454,479.60x = 1,480,803,475,277,851,904
  5. Step 5: Solve for x
    x = 1,480,803,475,277,851,904/996,454,479.60
  6. Step 6: Final answer
    x = 1,486,072,375.20

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Double scale
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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.