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Finding the Fourth Proportional to 328,075.60, 492,052.65 and 91,369.30

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Solution

The fourth proportional to 328,075.60, 492,052.65 and 91,369.30 is: 137,037.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,075.60 : 492,052.65 = 91,369.30 : x
  2. Step 2: Convert to fraction form
    328,075.60/492,052.65 = 91,369.30/x
  3. Step 3: Cross multiply
    328,075.60x = 492,052.65 × 91,369.30
  4. Step 4: Simplify right side
    328,075.60x = 44,958,506,193.65
  5. Step 5: Solve for x
    x = 44,958,506,193.65/328,075.60
  6. Step 6: Final answer
    x = 137,037.03

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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.