Home / 1,186,056.54-1,779,069.07-287,506.17

Finding the Fourth Proportional to 1,186,056.54, 1,779,069.07 and 287,506.17

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Solution

The fourth proportional to 1,186,056.54, 1,779,069.07 and 287,506.17 is: 431,255.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,056.54 : 1,779,069.07 = 287,506.17 : x
  2. Step 2: Convert to fraction form
    1,186,056.54/1,779,069.07 = 287,506.17/x
  3. Step 3: Cross multiply
    1,186,056.54x = 1,779,069.07 × 287,506.17
  4. Step 4: Simplify right side
    1,186,056.54x = 511,493,324,148.29
  5. Step 5: Solve for x
    x = 511,493,324,148.29/1,186,056.54
  6. Step 6: Final answer
    x = 431,255.43

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Double scale
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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.