Home / 319,728.60-441,225.54-176,488.72

Finding the Fourth Proportional to 319,728.60, 441,225.54 and 176,488.72

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Solution

The fourth proportional to 319,728.60, 441,225.54 and 176,488.72 is: 243,554.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,728.60 : 441,225.54 = 176,488.72 : x
  2. Step 2: Convert to fraction form
    319,728.60/441,225.54 = 176,488.72/x
  3. Step 3: Cross multiply
    319,728.60x = 441,225.54 × 176,488.72
  4. Step 4: Simplify right side
    319,728.60x = 77,871,330,785.91
  5. Step 5: Solve for x
    x = 77,871,330,785.91/319,728.60
  6. Step 6: Final answer
    x = 243,554.47

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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.