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Finding the Fourth Proportional to 319,488.16, 440,894.12 and 176,247.92

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Solution

The fourth proportional to 319,488.16, 440,894.12 and 176,247.92 is: 243,222.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,488.16 : 440,894.12 = 176,247.92 : x
  2. Step 2: Convert to fraction form
    319,488.16/440,894.12 = 176,247.92/x
  3. Step 3: Cross multiply
    319,488.16x = 440,894.12 × 176,247.92
  4. Step 4: Simplify right side
    319,488.16x = 77,706,671,590.23
  5. Step 5: Solve for x
    x = 77,706,671,590.23/319,488.16
  6. Step 6: Final answer
    x = 243,222.38

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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.