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Finding the Fourth Proportional to 356,679,903.60, 535,019,855.40 and 302,260,345.20

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Solution

The fourth proportional to 356,679,903.60, 535,019,855.40 and 302,260,345.20 is: 453,390,517.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,679,903.60 : 535,019,855.40 = 302,260,345.20 : x
  2. Step 2: Convert to fraction form
    356,679,903.60/535,019,855.40 = 302,260,345.20/x
  3. Step 3: Cross multiply
    356,679,903.60x = 535,019,855.40 × 302,260,345.20
  4. Step 4: Simplify right side
    356,679,903.60x = 161,715,286,182,058,080
  5. Step 5: Solve for x
    x = 161,715,286,182,058,080/356,679,903.60
  6. Step 6: Final answer
    x = 453,390,517.80

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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.