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Finding the Fourth Proportional to 421,851,863.00, 582,155,368.45 and 252,306,097.80

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Solution

The fourth proportional to 421,851,863.00, 582,155,368.45 and 252,306,097.80 is: 348,182,293.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,851,863.00 : 582,155,368.45 = 252,306,097.80 : x
  2. Step 2: Convert to fraction form
    421,851,863.00/582,155,368.45 = 252,306,097.80/x
  3. Step 3: Cross multiply
    421,851,863.00x = 582,155,368.45 × 252,306,097.80
  4. Step 4: Simplify right side
    421,851,863.00x = 146,881,349,326,940,768
  5. Step 5: Solve for x
    x = 146,881,349,326,940,768/421,851,863.00
  6. Step 6: Final answer
    x = 348,182,293.86

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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.