Home / 807,461.47-1,114,286.53-439,953.92

Finding the Fourth Proportional to 807,461.47, 1,114,286.53 and 439,953.92

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Solution

The fourth proportional to 807,461.47, 1,114,286.53 and 439,953.92 is: 607,130.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,461.47 : 1,114,286.53 = 439,953.92 : x
  2. Step 2: Convert to fraction form
    807,461.47/1,114,286.53 = 439,953.92/x
  3. Step 3: Cross multiply
    807,461.47x = 1,114,286.53 × 439,953.92
  4. Step 4: Simplify right side
    807,461.47x = 490,234,728,562.53
  5. Step 5: Solve for x
    x = 490,234,728,562.53/807,461.47
  6. Step 6: Final answer
    x = 607,130.80

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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.