Home / 785,166.88-1,083,563.52-445,666.72

Finding the Fourth Proportional to 785,166.88, 1,083,563.52 and 445,666.72

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Solution

The fourth proportional to 785,166.88, 1,083,563.52 and 445,666.72 is: 615,038.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,166.88 : 1,083,563.52 = 445,666.72 : x
  2. Step 2: Convert to fraction form
    785,166.88/1,083,563.52 = 445,666.72/x
  3. Step 3: Cross multiply
    785,166.88x = 1,083,563.52 × 445,666.72
  4. Step 4: Simplify right side
    785,166.88x = 482,908,199,870.05
  5. Step 5: Solve for x
    x = 482,908,199,870.05/785,166.88
  6. Step 6: Final answer
    x = 615,038.93

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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.