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Finding the Fourth Proportional to 429,752,401.80, 644,628,602.70 and 429,752,401.80

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Solution

The fourth proportional to 429,752,401.80, 644,628,602.70 and 429,752,401.80 is: 644,628,602.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,752,401.80 : 644,628,602.70 = 429,752,401.80 : x
  2. Step 2: Convert to fraction form
    429,752,401.80/644,628,602.70 = 429,752,401.80/x
  3. Step 3: Cross multiply
    429,752,401.80x = 644,628,602.70 × 429,752,401.80
  4. Step 4: Simplify right side
    429,752,401.80x = 277,030,690,279,303,008
  5. Step 5: Solve for x
    x = 277,030,690,279,303,008/429,752,401.80
  6. Step 6: Final answer
    x = 644,628,602.70

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1.5x scale

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.