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Finding the Fourth Proportional to 570,611.40, 855,299.27 and 371,075.00

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Solution

The fourth proportional to 570,611.40, 855,299.27 and 371,075.00 is: 556,210.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,611.40 : 855,299.27 = 371,075.00 : x
  2. Step 2: Convert to fraction form
    570,611.40/855,299.27 = 371,075.00/x
  3. Step 3: Cross multiply
    570,611.40x = 855,299.27 × 371,075.00
  4. Step 4: Simplify right side
    570,611.40x = 317,380,170,483.38
  5. Step 5: Solve for x
    x = 317,380,170,483.38/570,611.40
  6. Step 6: Final answer
    x = 556,210.71

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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.