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Finding the Fourth Proportional to 473,437.80, 709,811.10 and 192,810.60

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Solution

The fourth proportional to 473,437.80, 709,811.10 and 192,810.60 is: 289,075.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,437.80 : 709,811.10 = 192,810.60 : x
  2. Step 2: Convert to fraction form
    473,437.80/709,811.10 = 192,810.60/x
  3. Step 3: Cross multiply
    473,437.80x = 709,811.10 × 192,810.60
  4. Step 4: Simplify right side
    473,437.80x = 136,859,104,077.66
  5. Step 5: Solve for x
    x = 136,859,104,077.66/473,437.80
  6. Step 6: Final answer
    x = 289,075.15

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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.