Home / 931,857,571.46-1,285,990,364.86-514,196,753.06

Finding the Fourth Proportional to 931,857,571.46, 1,285,990,364.86 and 514,196,753.06

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Solution

The fourth proportional to 931,857,571.46, 1,285,990,364.86 and 514,196,753.06 is: 709,606,371.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,857,571.46 : 1,285,990,364.86 = 514,196,753.06 : x
  2. Step 2: Convert to fraction form
    931,857,571.46/1,285,990,364.86 = 514,196,753.06/x
  3. Step 3: Cross multiply
    931,857,571.46x = 1,285,990,364.86 × 514,196,753.06
  4. Step 4: Simplify right side
    931,857,571.46x = 661,252,070,077,456,640
  5. Step 5: Solve for x
    x = 661,252,070,077,456,640/931,857,571.46
  6. Step 6: Final answer
    x = 709,606,371.54

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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.