Home / 712,730.09-983,194.65-440,711.03

Finding the Fourth Proportional to 712,730.09, 983,194.65 and 440,711.03

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Solution

The fourth proportional to 712,730.09, 983,194.65 and 440,711.03 is: 607,950.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,730.09 : 983,194.65 = 440,711.03 : x
  2. Step 2: Convert to fraction form
    712,730.09/983,194.65 = 440,711.03/x
  3. Step 3: Cross multiply
    712,730.09x = 983,194.65 × 440,711.03
  4. Step 4: Simplify right side
    712,730.09x = 433,304,721,976.02
  5. Step 5: Solve for x
    x = 433,304,721,976.02/712,730.09
  6. Step 6: Final answer
    x = 607,950.65

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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.