Home / 668,935.32-923,131.38-382,461.40

Finding the Fourth Proportional to 668,935.32, 923,131.38 and 382,461.40

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Solution

The fourth proportional to 668,935.32, 923,131.38 and 382,461.40 is: 527,797.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,935.32 : 923,131.38 = 382,461.40 : x
  2. Step 2: Convert to fraction form
    668,935.32/923,131.38 = 382,461.40/x
  3. Step 3: Cross multiply
    668,935.32x = 923,131.38 × 382,461.40
  4. Step 4: Simplify right side
    668,935.32x = 353,062,119,978.73
  5. Step 5: Solve for x
    x = 353,062,119,978.73/668,935.32
  6. Step 6: Final answer
    x = 527,797.10

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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.