Home / 711,844.70-982,345.74-389,554.98

Finding the Fourth Proportional to 711,844.70, 982,345.74 and 389,554.98

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Solution

The fourth proportional to 711,844.70, 982,345.74 and 389,554.98 is: 537,585.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,844.70 : 982,345.74 = 389,554.98 : x
  2. Step 2: Convert to fraction form
    711,844.70/982,345.74 = 389,554.98/x
  3. Step 3: Cross multiply
    711,844.70x = 982,345.74 × 389,554.98
  4. Step 4: Simplify right side
    711,844.70x = 382,677,675,098.79
  5. Step 5: Solve for x
    x = 382,677,675,098.79/711,844.70
  6. Step 6: Final answer
    x = 537,585.90

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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.