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Finding the Fourth Proportional to 625,754,120.55, 877,869,754.05 and 625,754,120.55

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Solution

The fourth proportional to 625,754,120.55, 877,869,754.05 and 625,754,120.55 is: 877,869,754.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,754,120.55 : 877,869,754.05 = 625,754,120.55 : x
  2. Step 2: Convert to fraction form
    625,754,120.55/877,869,754.05 = 625,754,120.55/x
  3. Step 3: Cross multiply
    625,754,120.55x = 877,869,754.05 × 625,754,120.55
  4. Step 4: Simplify right side
    625,754,120.55x = 549,330,615,903,002,496
  5. Step 5: Solve for x
    x = 549,330,615,903,002,496/625,754,120.55
  6. Step 6: Final answer
    x = 877,869,754.05

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.