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Finding the Fourth Proportional to 452,709,147.60, 679,063,721.40 and 452,709,147.60

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Solution

The fourth proportional to 452,709,147.60, 679,063,721.40 and 452,709,147.60 is: 679,063,721.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,709,147.60 : 679,063,721.40 = 452,709,147.60 : x
  2. Step 2: Convert to fraction form
    452,709,147.60/679,063,721.40 = 452,709,147.60/x
  3. Step 3: Cross multiply
    452,709,147.60x = 679,063,721.40 × 452,709,147.60
  4. Step 4: Simplify right side
    452,709,147.60x = 307,418,358,481,077,888
  5. Step 5: Solve for x
    x = 307,418,358,481,077,888/452,709,147.60
  6. Step 6: Final answer
    x = 679,063,721.40

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1.5x scale

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.