Home / 877,781.46-1,211,004.57-648,888.32

Finding the Fourth Proportional to 877,781.46, 1,211,004.57 and 648,888.32

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Solution

The fourth proportional to 877,781.46, 1,211,004.57 and 648,888.32 is: 895,219.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,781.46 : 1,211,004.57 = 648,888.32 : x
  2. Step 2: Convert to fraction form
    877,781.46/1,211,004.57 = 648,888.32/x
  3. Step 3: Cross multiply
    877,781.46x = 1,211,004.57 × 648,888.32
  4. Step 4: Simplify right side
    877,781.46x = 785,806,719,588.56
  5. Step 5: Solve for x
    x = 785,806,719,588.56/877,781.46
  6. Step 6: Final answer
    x = 895,219.09

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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.