Home / 711,904.40-982,428.48-389,614.34

Finding the Fourth Proportional to 711,904.40, 982,428.48 and 389,614.34

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Solution

The fourth proportional to 711,904.40, 982,428.48 and 389,614.34 is: 537,668.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,904.40 : 982,428.48 = 389,614.34 : x
  2. Step 2: Convert to fraction form
    711,904.40/982,428.48 = 389,614.34/x
  3. Step 3: Cross multiply
    711,904.40x = 982,428.48 × 389,614.34
  4. Step 4: Simplify right side
    711,904.40x = 382,768,223,832.40
  5. Step 5: Solve for x
    x = 382,768,223,832.40/711,904.40
  6. Step 6: Final answer
    x = 537,668.01

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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.