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Finding the Fourth Proportional to 319,303.41, 440,616.15 and 176,060.40

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Solution

The fourth proportional to 319,303.41, 440,616.15 and 176,060.40 is: 242,950.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,303.41 : 440,616.15 = 176,060.40 : x
  2. Step 2: Convert to fraction form
    319,303.41/440,616.15 = 176,060.40/x
  3. Step 3: Cross multiply
    319,303.41x = 440,616.15 × 176,060.40
  4. Step 4: Simplify right side
    319,303.41x = 77,575,055,615.46
  5. Step 5: Solve for x
    x = 77,575,055,615.46/319,303.41
  6. Step 6: Final answer
    x = 242,950.91

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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.