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Finding the Fourth Proportional to 346,039.40, 518,074.95 and 346,039.40

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Solution

The fourth proportional to 346,039.40, 518,074.95 and 346,039.40 is: 518,074.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,039.40 : 518,074.95 = 346,039.40 : x
  2. Step 2: Convert to fraction form
    346,039.40/518,074.95 = 346,039.40/x
  3. Step 3: Cross multiply
    346,039.40x = 518,074.95 × 346,039.40
  4. Step 4: Simplify right side
    346,039.40x = 179,274,344,853.03
  5. Step 5: Solve for x
    x = 179,274,344,853.03/346,039.40
  6. Step 6: Final answer
    x = 518,074.95

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1.5x scale

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.