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Finding the Fourth Proportional to 562,793,225.16, 776,654,061.68 and 315,276,321.72

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Solution

The fourth proportional to 562,793,225.16, 776,654,061.68 and 315,276,321.72 is: 435,080,993.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,793,225.16 : 776,654,061.68 = 315,276,321.72 : x
  2. Step 2: Convert to fraction form
    562,793,225.16/776,654,061.68 = 315,276,321.72/x
  3. Step 3: Cross multiply
    562,793,225.16x = 776,654,061.68 × 315,276,321.72
  4. Step 4: Simplify right side
    562,793,225.16x = 244,860,635,815,368,416
  5. Step 5: Solve for x
    x = 244,860,635,815,368,416/562,793,225.16
  6. Step 6: Final answer
    x = 435,080,993.99

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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.