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Finding the Fourth Proportional to 370,852.70, 556,279.05 and 202,307.90

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Solution

The fourth proportional to 370,852.70, 556,279.05 and 202,307.90 is: 303,461.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,852.70 : 556,279.05 = 202,307.90 : x
  2. Step 2: Convert to fraction form
    370,852.70/556,279.05 = 202,307.90/x
  3. Step 3: Cross multiply
    370,852.70x = 556,279.05 × 202,307.90
  4. Step 4: Simplify right side
    370,852.70x = 112,539,646,419.50
  5. Step 5: Solve for x
    x = 112,539,646,419.50/370,852.70
  6. Step 6: Final answer
    x = 303,461.85

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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.