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Finding the Fourth Proportional to 978,960,045.60, 1,468,440,068.40 and 332,727,789.60

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Solution

The fourth proportional to 978,960,045.60, 1,468,440,068.40 and 332,727,789.60 is: 499,091,684.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,960,045.60 : 1,468,440,068.40 = 332,727,789.60 : x
  2. Step 2: Convert to fraction form
    978,960,045.60/1,468,440,068.40 = 332,727,789.60/x
  3. Step 3: Cross multiply
    978,960,045.60x = 1,468,440,068.40 × 332,727,789.60
  4. Step 4: Simplify right side
    978,960,045.60x = 488,590,818,118,804,864
  5. Step 5: Solve for x
    x = 488,590,818,118,804,864/978,960,045.60
  6. Step 6: Final answer
    x = 499,091,684.40

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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.