Home / 450,517.80-621,784.36-256,925.92

Finding the Fourth Proportional to 450,517.80, 621,784.36 and 256,925.92

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Solution

The fourth proportional to 450,517.80, 621,784.36 and 256,925.92 is: 354,597.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,517.80 : 621,784.36 = 256,925.92 : x
  2. Step 2: Convert to fraction form
    450,517.80/621,784.36 = 256,925.92/x
  3. Step 3: Cross multiply
    450,517.80x = 621,784.36 × 256,925.92
  4. Step 4: Simplify right side
    450,517.80x = 159,752,518,734.61
  5. Step 5: Solve for x
    x = 159,752,518,734.61/450,517.80
  6. Step 6: Final answer
    x = 354,597.57

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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.