Home / 557,360.06-769,156.20-302,709.42

Finding the Fourth Proportional to 557,360.06, 769,156.20 and 302,709.42

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Solution

The fourth proportional to 557,360.06, 769,156.20 and 302,709.42 is: 417,738.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,360.06 : 769,156.20 = 302,709.42 : x
  2. Step 2: Convert to fraction form
    557,360.06/769,156.20 = 302,709.42/x
  3. Step 3: Cross multiply
    557,360.06x = 769,156.20 × 302,709.42
  4. Step 4: Simplify right side
    557,360.06x = 232,830,827,191.40
  5. Step 5: Solve for x
    x = 232,830,827,191.40/557,360.06
  6. Step 6: Final answer
    x = 417,738.63

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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.