Home / 922,480.60-1,272,511.47-540,433.57

Finding the Fourth Proportional to 922,480.60, 1,272,511.47 and 540,433.57

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Solution

The fourth proportional to 922,480.60, 1,272,511.47 and 540,433.57 is: 745,498.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    922,480.60 : 1,272,511.47 = 540,433.57 : x
  2. Step 2: Convert to fraction form
    922,480.60/1,272,511.47 = 540,433.57/x
  3. Step 3: Cross multiply
    922,480.60x = 1,272,511.47 × 540,433.57
  4. Step 4: Simplify right side
    922,480.60x = 687,707,916,598.05
  5. Step 5: Solve for x
    x = 687,707,916,598.05/922,480.60
  6. Step 6: Final answer
    x = 745,498.51

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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.