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Finding the Fourth Proportional to 549,603,335.90, 824,405,003.85 and 291,323,009.90

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Solution

The fourth proportional to 549,603,335.90, 824,405,003.85 and 291,323,009.90 is: 436,984,514.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,603,335.90 : 824,405,003.85 = 291,323,009.90 : x
  2. Step 2: Convert to fraction form
    549,603,335.90/824,405,003.85 = 291,323,009.90/x
  3. Step 3: Cross multiply
    549,603,335.90x = 824,405,003.85 × 291,323,009.90
  4. Step 4: Simplify right side
    549,603,335.90x = 240,168,147,098,203,072
  5. Step 5: Solve for x
    x = 240,168,147,098,203,072/549,603,335.90
  6. Step 6: Final answer
    x = 436,984,514.85

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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.