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Finding the Fourth Proportional to 302,539.80, 453,809.70 and 197,477.40

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Solution

The fourth proportional to 302,539.80, 453,809.70 and 197,477.40 is: 296,216.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,539.80 : 453,809.70 = 197,477.40 : x
  2. Step 2: Convert to fraction form
    302,539.80/453,809.70 = 197,477.40/x
  3. Step 3: Cross multiply
    302,539.80x = 453,809.70 × 197,477.40
  4. Step 4: Simplify right side
    302,539.80x = 89,617,159,650.78
  5. Step 5: Solve for x
    x = 89,617,159,650.78/302,539.80
  6. Step 6: Final answer
    x = 296,216.10

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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.