Home / 905,016.93-1,248,962.61-517,953.85

Finding the Fourth Proportional to 905,016.93, 1,248,962.61 and 517,953.85

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Solution

The fourth proportional to 905,016.93, 1,248,962.61 and 517,953.85 is: 714,798.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,016.93 : 1,248,962.61 = 517,953.85 : x
  2. Step 2: Convert to fraction form
    905,016.93/1,248,962.61 = 517,953.85/x
  3. Step 3: Cross multiply
    905,016.93x = 1,248,962.61 × 517,953.85
  4. Step 4: Simplify right side
    905,016.93x = 646,904,992,355.55
  5. Step 5: Solve for x
    x = 646,904,992,355.55/905,016.93
  6. Step 6: Final answer
    x = 714,798.77

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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.