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Finding the Fourth Proportional to 346,488.84, 478,162.44 and 203,352.12

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Solution

The fourth proportional to 346,488.84, 478,162.44 and 203,352.12 is: 280,630.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,488.84 : 478,162.44 = 203,352.12 : x
  2. Step 2: Convert to fraction form
    346,488.84/478,162.44 = 203,352.12/x
  3. Step 3: Cross multiply
    346,488.84x = 478,162.44 × 203,352.12
  4. Step 4: Simplify right side
    346,488.84x = 97,235,345,878.37
  5. Step 5: Solve for x
    x = 97,235,345,878.37/346,488.84
  6. Step 6: Final answer
    x = 280,630.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.