Home / 692,789.90-956,031.44-386,857.76

Finding the Fourth Proportional to 692,789.90, 956,031.44 and 386,857.76

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Solution

The fourth proportional to 692,789.90, 956,031.44 and 386,857.76 is: 533,853.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,789.90 : 956,031.44 = 386,857.76 : x
  2. Step 2: Convert to fraction form
    692,789.90/956,031.44 = 386,857.76/x
  3. Step 3: Cross multiply
    692,789.90x = 956,031.44 × 386,857.76
  4. Step 4: Simplify right side
    692,789.90x = 369,848,179,433.69
  5. Step 5: Solve for x
    x = 369,848,179,433.69/692,789.90
  6. Step 6: Final answer
    x = 533,853.31

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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.