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Finding the Fourth Proportional to 351,041.40, 525,026.10 and 313,870.20

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Solution

The fourth proportional to 351,041.40, 525,026.10 and 313,870.20 is: 469,431.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,041.40 : 525,026.10 = 313,870.20 : x
  2. Step 2: Convert to fraction form
    351,041.40/525,026.10 = 313,870.20/x
  3. Step 3: Cross multiply
    351,041.40x = 525,026.10 × 313,870.20
  4. Step 4: Simplify right side
    351,041.40x = 164,790,047,012.22
  5. Step 5: Solve for x
    x = 164,790,047,012.22/351,041.40
  6. Step 6: Final answer
    x = 469,431.94

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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.