Home / 756,116.40-1,132,862.40-638,018.40

Finding the Fourth Proportional to 756,116.40, 1,132,862.40 and 638,018.40

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Solution

The fourth proportional to 756,116.40, 1,132,862.40 and 638,018.40 is: 955,920.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,116.40 : 1,132,862.40 = 638,018.40 : x
  2. Step 2: Convert to fraction form
    756,116.40/1,132,862.40 = 638,018.40/x
  3. Step 3: Cross multiply
    756,116.40x = 1,132,862.40 × 638,018.40
  4. Step 4: Simplify right side
    756,116.40x = 722,787,055,868.16
  5. Step 5: Solve for x
    x = 722,787,055,868.16/756,116.40
  6. Step 6: Final answer
    x = 955,920.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.