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Finding the Fourth Proportional to 319,328.32, 440,662.98 and 176,094.40

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Solution

The fourth proportional to 319,328.32, 440,662.98 and 176,094.40 is: 243,004.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,328.32 : 440,662.98 = 176,094.40 : x
  2. Step 2: Convert to fraction form
    319,328.32/440,662.98 = 176,094.40/x
  3. Step 3: Cross multiply
    319,328.32x = 440,662.98 × 176,094.40
  4. Step 4: Simplify right side
    319,328.32x = 77,598,283,065.31
  5. Step 5: Solve for x
    x = 77,598,283,065.31/319,328.32
  6. Step 6: Final answer
    x = 243,004.70

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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.