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Finding the Fourth Proportional to 404,384.40, 607,075.80 and 254,624.40

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Solution

The fourth proportional to 404,384.40, 607,075.80 and 254,624.40 is: 382,250.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,384.40 : 607,075.80 = 254,624.40 : x
  2. Step 2: Convert to fraction form
    404,384.40/607,075.80 = 254,624.40/x
  3. Step 3: Cross multiply
    404,384.40x = 607,075.80 × 254,624.40
  4. Step 4: Simplify right side
    404,384.40x = 154,576,311,329.52
  5. Step 5: Solve for x
    x = 154,576,311,329.52/404,384.40
  6. Step 6: Final answer
    x = 382,250.93

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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.