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Finding the Fourth Proportional to 549,709,213.80, 824,563,820.70 and 549,709,213.80

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Solution

The fourth proportional to 549,709,213.80, 824,563,820.70 and 549,709,213.80 is: 824,563,820.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,709,213.80 : 824,563,820.70 = 549,709,213.80 : x
  2. Step 2: Convert to fraction form
    549,709,213.80/824,563,820.70 = 549,709,213.80/x
  3. Step 3: Cross multiply
    549,709,213.80x = 824,563,820.70 × 549,709,213.80
  4. Step 4: Simplify right side
    549,709,213.80x = 453,270,329,604,921,152
  5. Step 5: Solve for x
    x = 453,270,329,604,921,152/549,709,213.80
  6. Step 6: Final answer
    x = 824,563,820.70

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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.