Home / 910,862.29-1,257,100.79-528,889.06

Finding the Fourth Proportional to 910,862.29, 1,257,100.79 and 528,889.06

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Solution

The fourth proportional to 910,862.29, 1,257,100.79 and 528,889.06 is: 729,931.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,862.29 : 1,257,100.79 = 528,889.06 : x
  2. Step 2: Convert to fraction form
    910,862.29/1,257,100.79 = 528,889.06/x
  3. Step 3: Cross multiply
    910,862.29x = 1,257,100.79 × 528,889.06
  4. Step 4: Simplify right side
    910,862.29x = 664,866,849,361.16
  5. Step 5: Solve for x
    x = 664,866,849,361.16/910,862.29
  6. Step 6: Final answer
    x = 729,931.25

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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.