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Finding the Fourth Proportional to 404,841, 558,729.78 and 235,075.12

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Solution

The fourth proportional to 404,841, 558,729.78 and 235,075.12 is: 324,432.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,841 : 558,729.78 = 235,075.12 : x
  2. Step 2: Convert to fraction form
    404,841/558,729.78 = 235,075.12/x
  3. Step 3: Cross multiply
    404,841x = 558,729.78 × 235,075.12
  4. Step 4: Simplify right side
    404,841x = 131,343,470,081.07
  5. Step 5: Solve for x
    x = 131,343,470,081.07/404,841
  6. Step 6: Final answer
    x = 324,432.23

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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.