Home / 911,384,868.66-1,257,913,450.29-554,076,721.97

Finding the Fourth Proportional to 911,384,868.66, 1,257,913,450.29 and 554,076,721.97

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Solution

The fourth proportional to 911,384,868.66, 1,257,913,450.29 and 554,076,721.97 is: 764,748,883.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,384,868.66 : 1,257,913,450.29 = 554,076,721.97 : x
  2. Step 2: Convert to fraction form
    911,384,868.66/1,257,913,450.29 = 554,076,721.97/x
  3. Step 3: Cross multiply
    911,384,868.66x = 1,257,913,450.29 × 554,076,721.97
  4. Step 4: Simplify right side
    911,384,868.66x = 696,980,561,059,133,440
  5. Step 5: Solve for x
    x = 696,980,561,059,133,440/911,384,868.66
  6. Step 6: Final answer
    x = 764,748,883.85

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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.