Home / 692,084.66-954,913.83-420,145.70

Finding the Fourth Proportional to 692,084.66, 954,913.83 and 420,145.70

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Solution

The fourth proportional to 692,084.66, 954,913.83 and 420,145.70 is: 579,702.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,084.66 : 954,913.83 = 420,145.70 : x
  2. Step 2: Convert to fraction form
    692,084.66/954,913.83 = 420,145.70/x
  3. Step 3: Cross multiply
    692,084.66x = 954,913.83 × 420,145.70
  4. Step 4: Simplify right side
    692,084.66x = 401,202,939,545.03
  5. Step 5: Solve for x
    x = 401,202,939,545.03/692,084.66
  6. Step 6: Final answer
    x = 579,702.11

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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.