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Finding the Fourth Proportional to 328,050.60, 492,075.90 and 325,285.80

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Solution

The fourth proportional to 328,050.60, 492,075.90 and 325,285.80 is: 487,928.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,050.60 : 492,075.90 = 325,285.80 : x
  2. Step 2: Convert to fraction form
    328,050.60/492,075.90 = 325,285.80/x
  3. Step 3: Cross multiply
    328,050.60x = 492,075.90 × 325,285.80
  4. Step 4: Simplify right side
    328,050.60x = 160,065,302,792.22
  5. Step 5: Solve for x
    x = 160,065,302,792.22/328,050.60
  6. Step 6: Final answer
    x = 487,928.70

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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.