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Finding the Fourth Proportional to 1,080,159,847.02, 1,490,860,389.24 and 656,683,525.02

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Solution

The fourth proportional to 1,080,159,847.02, 1,490,860,389.24 and 656,683,525.02 is: 906,369,051.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080,159,847.02 : 1,490,860,389.24 = 656,683,525.02 : x
  2. Step 2: Convert to fraction form
    1,080,159,847.02/1,490,860,389.24 = 656,683,525.02/x
  3. Step 3: Cross multiply
    1,080,159,847.02x = 1,490,860,389.24 × 656,683,525.02
  4. Step 4: Simplify right side
    1,080,159,847.02x = 979,023,455,718,812,416
  5. Step 5: Solve for x
    x = 979,023,455,718,812,416/1,080,159,847.02
  6. Step 6: Final answer
    x = 906,369,051.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.