Home / 779,085.51-1,170,683.18-419,522.21

Finding the Fourth Proportional to 779,085.51, 1,170,683.18 and 419,522.21

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Solution

The fourth proportional to 779,085.51, 1,170,683.18 and 419,522.21 is: 630,389.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,085.51 : 1,170,683.18 = 419,522.21 : x
  2. Step 2: Convert to fraction form
    779,085.51/1,170,683.18 = 419,522.21/x
  3. Step 3: Cross multiply
    779,085.51x = 1,170,683.18 × 419,522.21
  4. Step 4: Simplify right side
    779,085.51x = 491,127,586,932.40
  5. Step 5: Solve for x
    x = 491,127,586,932.40/779,085.51
  6. Step 6: Final answer
    x = 630,389.84

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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.