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Finding the Fourth Proportional to 594,075.20, 891,112.80 and 342,132.80

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Solution

The fourth proportional to 594,075.20, 891,112.80 and 342,132.80 is: 513,199.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    594,075.20 : 891,112.80 = 342,132.80 : x
  2. Step 2: Convert to fraction form
    594,075.20/891,112.80 = 342,132.80/x
  3. Step 3: Cross multiply
    594,075.20x = 891,112.80 × 342,132.80
  4. Step 4: Simplify right side
    594,075.20x = 304,878,917,379.84
  5. Step 5: Solve for x
    x = 304,878,917,379.84/594,075.20
  6. Step 6: Final answer
    x = 513,199.20

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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.