Home / 711,817.98-982,308.88-389,528.06

Finding the Fourth Proportional to 711,817.98, 982,308.88 and 389,528.06

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Solution

The fourth proportional to 711,817.98, 982,308.88 and 389,528.06 is: 537,548.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,817.98 : 982,308.88 = 389,528.06 : x
  2. Step 2: Convert to fraction form
    711,817.98/982,308.88 = 389,528.06/x
  3. Step 3: Cross multiply
    711,817.98x = 982,308.88 × 389,528.06
  4. Step 4: Simplify right side
    711,817.98x = 382,636,872,347.17
  5. Step 5: Solve for x
    x = 382,636,872,347.17/711,817.98
  6. Step 6: Final answer
    x = 537,548.76

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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.