Home / 783,607.10-1,081,389.23-456,911.21

Finding the Fourth Proportional to 783,607.10, 1,081,389.23 and 456,911.21

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Solution

The fourth proportional to 783,607.10, 1,081,389.23 and 456,911.21 is: 630,544.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,607.10 : 1,081,389.23 = 456,911.21 : x
  2. Step 2: Convert to fraction form
    783,607.10/1,081,389.23 = 456,911.21/x
  3. Step 3: Cross multiply
    783,607.10x = 1,081,389.23 × 456,911.21
  4. Step 4: Simplify right side
    783,607.10x = 494,098,861,560.27
  5. Step 5: Solve for x
    x = 494,098,861,560.27/783,607.10
  6. Step 6: Final answer
    x = 630,544.14

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Double scale
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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.