Home / 678,223.83-936,046.22-406,303.19

Finding the Fourth Proportional to 678,223.83, 936,046.22 and 406,303.19

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Solution

The fourth proportional to 678,223.83, 936,046.22 and 406,303.19 is: 560,756.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,223.83 : 936,046.22 = 406,303.19 : x
  2. Step 2: Convert to fraction form
    678,223.83/936,046.22 = 406,303.19/x
  3. Step 3: Cross multiply
    678,223.83x = 936,046.22 × 406,303.19
  4. Step 4: Simplify right side
    678,223.83x = 380,318,558,461.70
  5. Step 5: Solve for x
    x = 380,318,558,461.70/678,223.83
  6. Step 6: Final answer
    x = 560,756.70

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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.