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Finding the Fourth Proportional to 661,627,218.90, 992,440,828.35 and 661,627,218.90

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Solution

The fourth proportional to 661,627,218.90, 992,440,828.35 and 661,627,218.90 is: 992,440,828.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,627,218.90 : 992,440,828.35 = 661,627,218.90 : x
  2. Step 2: Convert to fraction form
    661,627,218.90/992,440,828.35 = 661,627,218.90/x
  3. Step 3: Cross multiply
    661,627,218.90x = 992,440,828.35 × 661,627,218.90
  4. Step 4: Simplify right side
    661,627,218.90x = 656,625,865,184,022,784
  5. Step 5: Solve for x
    x = 656,625,865,184,022,784/661,627,218.90
  6. Step 6: Final answer
    x = 992,440,828.35

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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.