Home / 557,623.32-769,527.18-302,978.76

Finding the Fourth Proportional to 557,623.32, 769,527.18 and 302,978.76

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Solution

The fourth proportional to 557,623.32, 769,527.18 and 302,978.76 is: 418,114.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,623.32 : 769,527.18 = 302,978.76 : x
  2. Step 2: Convert to fraction form
    557,623.32/769,527.18 = 302,978.76/x
  3. Step 3: Cross multiply
    557,623.32x = 769,527.18 × 302,978.76
  4. Step 4: Simplify right side
    557,623.32x = 233,150,390,782.70
  5. Step 5: Solve for x
    x = 233,150,390,782.70/557,623.32
  6. Step 6: Final answer
    x = 418,114.49

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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.