Home / 711,823.53-982,292.58-389,512.02

Finding the Fourth Proportional to 711,823.53, 982,292.58 and 389,512.02

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Solution

The fourth proportional to 711,823.53, 982,292.58 and 389,512.02 is: 537,513.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,823.53 : 982,292.58 = 389,512.02 : x
  2. Step 2: Convert to fraction form
    711,823.53/982,292.58 = 389,512.02/x
  3. Step 3: Cross multiply
    711,823.53x = 982,292.58 × 389,512.02
  4. Step 4: Simplify right side
    711,823.53x = 382,614,767,066.81
  5. Step 5: Solve for x
    x = 382,614,767,066.81/711,823.53
  6. Step 6: Final answer
    x = 537,513.51

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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.