Home / 782,510.83-1,172,238.11-539,308.40

Finding the Fourth Proportional to 782,510.83, 1,172,238.11 and 539,308.40

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Solution

The fourth proportional to 782,510.83, 1,172,238.11 and 539,308.40 is: 807,909.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,510.83 : 1,172,238.11 = 539,308.40 : x
  2. Step 2: Convert to fraction form
    782,510.83/1,172,238.11 = 539,308.40/x
  3. Step 3: Cross multiply
    782,510.83x = 1,172,238.11 × 539,308.40
  4. Step 4: Simplify right side
    782,510.83x = 632,197,852,987.80
  5. Step 5: Solve for x
    x = 632,197,852,987.80/782,510.83
  6. Step 6: Final answer
    x = 807,909.40

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1.5x scale

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.