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Finding the Fourth Proportional to 319,762.80, 441,261 and 176,522.40

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Solution

The fourth proportional to 319,762.80, 441,261 and 176,522.40 is: 243,594.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,762.80 : 441,261 = 176,522.40 : x
  2. Step 2: Convert to fraction form
    319,762.80/441,261 = 176,522.40/x
  3. Step 3: Cross multiply
    319,762.80x = 441,261 × 176,522.40
  4. Step 4: Simplify right side
    319,762.80x = 77,892,450,746.40
  5. Step 5: Solve for x
    x = 77,892,450,746.40/319,762.80
  6. Step 6: Final answer
    x = 243,594.47

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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.