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Finding the Fourth Proportional to 369,075.70, 553,613.55 and 322,419.70

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Solution

The fourth proportional to 369,075.70, 553,613.55 and 322,419.70 is: 483,629.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,075.70 : 553,613.55 = 322,419.70 : x
  2. Step 2: Convert to fraction form
    369,075.70/553,613.55 = 322,419.70/x
  3. Step 3: Cross multiply
    369,075.70x = 553,613.55 × 322,419.70
  4. Step 4: Simplify right side
    369,075.70x = 178,495,914,706.94
  5. Step 5: Solve for x
    x = 178,495,914,706.94/369,075.70
  6. Step 6: Final answer
    x = 483,629.55

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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.