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Finding the Fourth Proportional to 370,335,428.80, 555,251,200.80 and 176,339,780.80

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Solution

The fourth proportional to 370,335,428.80, 555,251,200.80 and 176,339,780.80 is: 264,389,705.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,335,428.80 : 555,251,200.80 = 176,339,780.80 : x
  2. Step 2: Convert to fraction form
    370,335,428.80/555,251,200.80 = 176,339,780.80/x
  3. Step 3: Cross multiply
    370,335,428.80x = 555,251,200.80 × 176,339,780.80
  4. Step 4: Simplify right side
    370,335,428.80x = 97,912,875,038,008,784
  5. Step 5: Solve for x
    x = 97,912,875,038,008,784/370,335,428.80
  6. Step 6: Final answer
    x = 264,389,705.72

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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.