Home / 838,395.79-1,156,949.90-456,423.91

Finding the Fourth Proportional to 838,395.79, 1,156,949.90 and 456,423.91

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Solution

The fourth proportional to 838,395.79, 1,156,949.90 and 456,423.91 is: 629,845.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,395.79 : 1,156,949.90 = 456,423.91 : x
  2. Step 2: Convert to fraction form
    838,395.79/1,156,949.90 = 456,423.91/x
  3. Step 3: Cross multiply
    838,395.79x = 1,156,949.90 × 456,423.91
  4. Step 4: Simplify right side
    838,395.79x = 528,059,594,749.99
  5. Step 5: Solve for x
    x = 528,059,594,749.99/838,395.79
  6. Step 6: Final answer
    x = 629,845.24

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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.