Home / 810,539.60-1,215,809.40-653,075.60

Finding the Fourth Proportional to 810,539.60, 1,215,809.40 and 653,075.60

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Solution

The fourth proportional to 810,539.60, 1,215,809.40 and 653,075.60 is: 979,613.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,539.60 : 1,215,809.40 = 653,075.60 : x
  2. Step 2: Convert to fraction form
    810,539.60/1,215,809.40 = 653,075.60/x
  3. Step 3: Cross multiply
    810,539.60x = 1,215,809.40 × 653,075.60
  4. Step 4: Simplify right side
    810,539.60x = 794,015,453,390.64
  5. Step 5: Solve for x
    x = 794,015,453,390.64/810,539.60
  6. Step 6: Final answer
    x = 979,613.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.