Home / 910,131.02-1,256,230.64-528,280.82

Finding the Fourth Proportional to 910,131.02, 1,256,230.64 and 528,280.82

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Solution

The fourth proportional to 910,131.02, 1,256,230.64 and 528,280.82 is: 729,172.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,131.02 : 1,256,230.64 = 528,280.82 : x
  2. Step 2: Convert to fraction form
    910,131.02/1,256,230.64 = 528,280.82/x
  3. Step 3: Cross multiply
    910,131.02x = 1,256,230.64 × 528,280.82
  4. Step 4: Simplify right side
    910,131.02x = 663,642,552,608.33
  5. Step 5: Solve for x
    x = 663,642,552,608.33/910,131.02
  6. Step 6: Final answer
    x = 729,172.55

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Double scale
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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.