Home / 917,552,261.70-1,376,328,392.55-661,185,123.30

Finding the Fourth Proportional to 917,552,261.70, 1,376,328,392.55 and 661,185,123.30

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Solution

The fourth proportional to 917,552,261.70, 1,376,328,392.55 and 661,185,123.30 is: 991,777,684.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,552,261.70 : 1,376,328,392.55 = 661,185,123.30 : x
  2. Step 2: Convert to fraction form
    917,552,261.70/1,376,328,392.55 = 661,185,123.30/x
  3. Step 3: Cross multiply
    917,552,261.70x = 1,376,328,392.55 × 661,185,123.30
  4. Step 4: Simplify right side
    917,552,261.70x = 910,007,857,929,462,400
  5. Step 5: Solve for x
    x = 910,007,857,929,462,400/917,552,261.70
  6. Step 6: Final answer
    x = 991,777,684.95

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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.