Home / 711,968.64-982,511.28-389,672.16

Finding the Fourth Proportional to 711,968.64, 982,511.28 and 389,672.16

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Solution

The fourth proportional to 711,968.64, 982,511.28 and 389,672.16 is: 537,744.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,968.64 : 982,511.28 = 389,672.16 : x
  2. Step 2: Convert to fraction form
    711,968.64/982,511.28 = 389,672.16/x
  3. Step 3: Cross multiply
    711,968.64x = 982,511.28 × 389,672.16
  4. Step 4: Simplify right side
    711,968.64x = 382,857,292,701.97
  5. Step 5: Solve for x
    x = 382,857,292,701.97/711,968.64
  6. Step 6: Final answer
    x = 537,744.60

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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.