Home / 319,670.31-441,142.85-176,430.34

Finding the Fourth Proportional to 319,670.31, 441,142.85 and 176,430.34

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Solution

The fourth proportional to 319,670.31, 441,142.85 and 176,430.34 is: 243,472.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,670.31 : 441,142.85 = 176,430.34 : x
  2. Step 2: Convert to fraction form
    319,670.31/441,142.85 = 176,430.34/x
  3. Step 3: Cross multiply
    319,670.31x = 441,142.85 × 176,430.34
  4. Step 4: Simplify right side
    319,670.31x = 77,830,984,502.97
  5. Step 5: Solve for x
    x = 77,830,984,502.97/319,670.31
  6. Step 6: Final answer
    x = 243,472.68

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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.