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Finding the Fourth Proportional to 1,000,586,504.76, 1,380,004,244.54 and 879,625,860.58

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Solution

The fourth proportional to 1,000,586,504.76, 1,380,004,244.54 and 879,625,860.58 is: 1,213,175,887.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,000,586,504.76 : 1,380,004,244.54 = 879,625,860.58 : x
  2. Step 2: Convert to fraction form
    1,000,586,504.76/1,380,004,244.54 = 879,625,860.58/x
  3. Step 3: Cross multiply
    1,000,586,504.76x = 1,380,004,244.54 × 879,625,860.58
  4. Step 4: Simplify right side
    1,000,586,504.76x = 1,213,887,421,200,362,496
  5. Step 5: Solve for x
    x = 1,213,887,421,200,362,496/1,000,586,504.76
  6. Step 6: Final answer
    x = 1,213,175,887.77

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Double scale
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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.