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Finding the Fourth Proportional to 497,780,323.40, 695,280,021.40 and 497,780,323.40

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Solution

The fourth proportional to 497,780,323.40, 695,280,021.40 and 497,780,323.40 is: 695,280,021.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,780,323.40 : 695,280,021.40 = 497,780,323.40 : x
  2. Step 2: Convert to fraction form
    497,780,323.40/695,280,021.40 = 497,780,323.40/x
  3. Step 3: Cross multiply
    497,780,323.40x = 695,280,021.40 × 497,780,323.40
  4. Step 4: Simplify right side
    497,780,323.40x = 346,096,713,906,050,880
  5. Step 5: Solve for x
    x = 346,096,713,906,050,880/497,780,323.40
  6. Step 6: Final answer
    x = 695,280,021.40

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.