Home / 960,620,696.64-1,325,657,694.72-520,587,548.64

Finding the Fourth Proportional to 960,620,696.64, 1,325,657,694.72 and 520,587,548.64

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Solution

The fourth proportional to 960,620,696.64, 1,325,657,694.72 and 520,587,548.64 is: 718,411,431.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    960,620,696.64 : 1,325,657,694.72 = 520,587,548.64 : x
  2. Step 2: Convert to fraction form
    960,620,696.64/1,325,657,694.72 = 520,587,548.64/x
  3. Step 3: Cross multiply
    960,620,696.64x = 1,325,657,694.72 × 520,587,548.64
  4. Step 4: Simplify right side
    960,620,696.64x = 690,120,889,630,038,272
  5. Step 5: Solve for x
    x = 690,120,889,630,038,272/960,620,696.64
  6. Step 6: Final answer
    x = 718,411,431.32

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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.