Home / 805,607.68-1,111,767.15-443,059.57

Finding the Fourth Proportional to 805,607.68, 1,111,767.15 and 443,059.57

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Solution

The fourth proportional to 805,607.68, 1,111,767.15 and 443,059.57 is: 611,437.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,607.68 : 1,111,767.15 = 443,059.57 : x
  2. Step 2: Convert to fraction form
    805,607.68/1,111,767.15 = 443,059.57/x
  3. Step 3: Cross multiply
    805,607.68x = 1,111,767.15 × 443,059.57
  4. Step 4: Simplify right side
    805,607.68x = 492,579,075,419.13
  5. Step 5: Solve for x
    x = 492,579,075,419.13/805,607.68
  6. Step 6: Final answer
    x = 611,437.91

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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.