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Finding the Fourth Proportional to 549,504,703.90, 824,257,055.85 and 545,678,328.70

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Solution

The fourth proportional to 549,504,703.90, 824,257,055.85 and 545,678,328.70 is: 818,517,493.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,504,703.90 : 824,257,055.85 = 545,678,328.70 : x
  2. Step 2: Convert to fraction form
    549,504,703.90/824,257,055.85 = 545,678,328.70/x
  3. Step 3: Cross multiply
    549,504,703.90x = 824,257,055.85 × 545,678,328.70
  4. Step 4: Simplify right side
    549,504,703.90x = 449,779,212,655,410,624
  5. Step 5: Solve for x
    x = 449,779,212,655,410,624/549,504,703.90
  6. Step 6: Final answer
    x = 818,517,493.05

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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.