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Finding the Fourth Proportional to 346,569.62, 518,671.62 and 290,473.06

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Solution

The fourth proportional to 346,569.62, 518,671.62 and 290,473.06 is: 434,718.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,569.62 : 518,671.62 = 290,473.06 : x
  2. Step 2: Convert to fraction form
    346,569.62/518,671.62 = 290,473.06/x
  3. Step 3: Cross multiply
    346,569.62x = 518,671.62 × 290,473.06
  4. Step 4: Simplify right side
    346,569.62x = 150,660,132,596.56
  5. Step 5: Solve for x
    x = 150,660,132,596.56/346,569.62
  6. Step 6: Final answer
    x = 434,718.23

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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.