Home / 910,368.32-1,256,733.43-528,321.29

Finding the Fourth Proportional to 910,368.32, 1,256,733.43 and 528,321.29

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Solution

The fourth proportional to 910,368.32, 1,256,733.43 and 528,321.29 is: 729,330.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,368.32 : 1,256,733.43 = 528,321.29 : x
  2. Step 2: Convert to fraction form
    910,368.32/1,256,733.43 = 528,321.29/x
  3. Step 3: Cross multiply
    910,368.32x = 1,256,733.43 × 528,321.29
  4. Step 4: Simplify right side
    910,368.32x = 663,959,019,319.25
  5. Step 5: Solve for x
    x = 663,959,019,319.25/910,368.32
  6. Step 6: Final answer
    x = 729,330.11

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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.