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Finding the Fourth Proportional to 668,689.02, 922,855.68 and 382,154.36

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Solution

The fourth proportional to 668,689.02, 922,855.68 and 382,154.36 is: 527,410.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,689.02 : 922,855.68 = 382,154.36 : x
  2. Step 2: Convert to fraction form
    668,689.02/922,855.68 = 382,154.36/x
  3. Step 3: Cross multiply
    668,689.02x = 922,855.68 × 382,154.36
  4. Step 4: Simplify right side
    668,689.02x = 352,673,317,148.49
  5. Step 5: Solve for x
    x = 352,673,317,148.49/668,689.02
  6. Step 6: Final answer
    x = 527,410.06

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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.