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Finding the Fourth Proportional to 443,918,400.70, 622,506,127.70 and 443,918,400.70

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Solution

The fourth proportional to 443,918,400.70, 622,506,127.70 and 443,918,400.70 is: 622,506,127.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,918,400.70 : 622,506,127.70 = 443,918,400.70 : x
  2. Step 2: Convert to fraction form
    443,918,400.70/622,506,127.70 = 443,918,400.70/x
  3. Step 3: Cross multiply
    443,918,400.70x = 622,506,127.70 × 443,918,400.70
  4. Step 4: Simplify right side
    443,918,400.70x = 276,341,924,634,533,984
  5. Step 5: Solve for x
    x = 276,341,924,634,533,984/443,918,400.70
  6. Step 6: Final answer
    x = 622,506,127.70

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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.