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Finding the Fourth Proportional to 359,621,322.60, 495,940,603.32 and 238,705,460.40

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Solution

The fourth proportional to 359,621,322.60, 495,940,603.32 and 238,705,460.40 is: 329,189,963.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,621,322.60 : 495,940,603.32 = 238,705,460.40 : x
  2. Step 2: Convert to fraction form
    359,621,322.60/495,940,603.32 = 238,705,460.40/x
  3. Step 3: Cross multiply
    359,621,322.60x = 495,940,603.32 × 238,705,460.40
  4. Step 4: Simplify right side
    359,621,322.60x = 118,383,730,046,554,368
  5. Step 5: Solve for x
    x = 118,383,730,046,554,368/359,621,322.60
  6. Step 6: Final answer
    x = 329,189,963.46

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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.