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Finding the Fourth Proportional to 404,570.40, 606,053.70 and 354,706.80

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Solution

The fourth proportional to 404,570.40, 606,053.70 and 354,706.80 is: 531,357.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,570.40 : 606,053.70 = 354,706.80 : x
  2. Step 2: Convert to fraction form
    404,570.40/606,053.70 = 354,706.80/x
  3. Step 3: Cross multiply
    404,570.40x = 606,053.70 × 354,706.80
  4. Step 4: Simplify right side
    404,570.40x = 214,971,368,555.16
  5. Step 5: Solve for x
    x = 214,971,368,555.16/404,570.40
  6. Step 6: Final answer
    x = 531,357.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.