Home / 910,775.04-1,256,941.44-528,921.60

Finding the Fourth Proportional to 910,775.04, 1,256,941.44 and 528,921.60

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Solution

The fourth proportional to 910,775.04, 1,256,941.44 and 528,921.60 is: 729,953.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,775.04 : 1,256,941.44 = 528,921.60 : x
  2. Step 2: Convert to fraction form
    910,775.04/1,256,941.44 = 528,921.60/x
  3. Step 3: Cross multiply
    910,775.04x = 1,256,941.44 × 528,921.60
  4. Step 4: Simplify right side
    910,775.04x = 664,823,477,551.10
  5. Step 5: Solve for x
    x = 664,823,477,551.10/910,775.04
  6. Step 6: Final answer
    x = 729,953.55

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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.