Home / 539,584.23-743,934.45-442,430.40

Finding the Fourth Proportional to 539,584.23, 743,934.45 and 442,430.40

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Solution

The fourth proportional to 539,584.23, 743,934.45 and 442,430.40 is: 609,986.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,584.23 : 743,934.45 = 442,430.40 : x
  2. Step 2: Convert to fraction form
    539,584.23/743,934.45 = 442,430.40/x
  3. Step 3: Cross multiply
    539,584.23x = 743,934.45 × 442,430.40
  4. Step 4: Simplify right side
    539,584.23x = 329,139,216,287.28
  5. Step 5: Solve for x
    x = 329,139,216,287.28/539,584.23
  6. Step 6: Final answer
    x = 609,986.72

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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.