Home / 753,563.72-1,039,916.25-431,280.11

Finding the Fourth Proportional to 753,563.72, 1,039,916.25 and 431,280.11

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Solution

The fourth proportional to 753,563.72, 1,039,916.25 and 431,280.11 is: 595,165.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,563.72 : 1,039,916.25 = 431,280.11 : x
  2. Step 2: Convert to fraction form
    753,563.72/1,039,916.25 = 431,280.11/x
  3. Step 3: Cross multiply
    753,563.72x = 1,039,916.25 × 431,280.11
  4. Step 4: Simplify right side
    753,563.72x = 448,495,189,491.21
  5. Step 5: Solve for x
    x = 448,495,189,491.21/753,563.72
  6. Step 6: Final answer
    x = 595,165.59

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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.