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Finding the Fourth Proportional to 423,446,643.60, 634,319,659.80 and 241,481,245.20

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Solution

The fourth proportional to 423,446,643.60, 634,319,659.80 and 241,481,245.20 is: 361,736,959.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,446,643.60 : 634,319,659.80 = 241,481,245.20 : x
  2. Step 2: Convert to fraction form
    423,446,643.60/634,319,659.80 = 241,481,245.20/x
  3. Step 3: Cross multiply
    423,446,643.60x = 634,319,659.80 × 241,481,245.20
  4. Step 4: Simplify right side
    423,446,643.60x = 153,176,301,303,344,352
  5. Step 5: Solve for x
    x = 153,176,301,303,344,352/423,446,643.60
  6. Step 6: Final answer
    x = 361,736,959.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.