Home / 985,185.76-1,358,908.40-679,275.04

Finding the Fourth Proportional to 985,185.76, 1,358,908.40 and 679,275.04

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Solution

The fourth proportional to 985,185.76, 1,358,908.40 and 679,275.04 is: 936,952.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,185.76 : 1,358,908.40 = 679,275.04 : x
  2. Step 2: Convert to fraction form
    985,185.76/1,358,908.40 = 679,275.04/x
  3. Step 3: Cross multiply
    985,185.76x = 1,358,908.40 × 679,275.04
  4. Step 4: Simplify right side
    985,185.76x = 923,072,557,766.34
  5. Step 5: Solve for x
    x = 923,072,557,766.34/985,185.76
  6. Step 6: Final answer
    x = 936,952.80

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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.