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Finding the Fourth Proportional to 460,394.73, 690,482.70 and 175,980.78

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Solution

The fourth proportional to 460,394.73, 690,482.70 and 175,980.78 is: 263,929.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,394.73 : 690,482.70 = 175,980.78 : x
  2. Step 2: Convert to fraction form
    460,394.73/690,482.70 = 175,980.78/x
  3. Step 3: Cross multiply
    460,394.73x = 690,482.70 × 175,980.78
  4. Step 4: Simplify right side
    460,394.73x = 121,511,684,122.51
  5. Step 5: Solve for x
    x = 121,511,684,122.51/460,394.73
  6. Step 6: Final answer
    x = 263,929.35

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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.