Home / 905,511.20-1,249,085.04-565,388.96

Finding the Fourth Proportional to 905,511.20, 1,249,085.04 and 565,388.96

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Solution

The fourth proportional to 905,511.20, 1,249,085.04 and 565,388.96 is: 779,911.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,511.20 : 1,249,085.04 = 565,388.96 : x
  2. Step 2: Convert to fraction form
    905,511.20/1,249,085.04 = 565,388.96/x
  3. Step 3: Cross multiply
    905,511.20x = 1,249,085.04 × 565,388.96
  4. Step 4: Simplify right side
    905,511.20x = 706,218,891,717.16
  5. Step 5: Solve for x
    x = 706,218,891,717.16/905,511.20
  6. Step 6: Final answer
    x = 779,911.82

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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.