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Finding the Fourth Proportional to 1,000,392,453.42, 1,380,549,691.58 and 554,363,267.06

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Solution

The fourth proportional to 1,000,392,453.42, 1,380,549,691.58 and 554,363,267.06 is: 765,025,800.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,000,392,453.42 : 1,380,549,691.58 = 554,363,267.06 : x
  2. Step 2: Convert to fraction form
    1,000,392,453.42/1,380,549,691.58 = 554,363,267.06/x
  3. Step 3: Cross multiply
    1,000,392,453.42x = 1,380,549,691.58 × 554,363,267.06
  4. Step 4: Simplify right side
    1,000,392,453.42x = 765,326,037,353,289,600
  5. Step 5: Solve for x
    x = 765,326,037,353,289,600/1,000,392,453.42
  6. Step 6: Final answer
    x = 765,025,800.36

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1.5x scale

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.