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Finding the Fourth Proportional to 545,973,404.30, 818,960,106.45 and 545,973,404.30

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Solution

The fourth proportional to 545,973,404.30, 818,960,106.45 and 545,973,404.30 is: 818,960,106.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,973,404.30 : 818,960,106.45 = 545,973,404.30 : x
  2. Step 2: Convert to fraction form
    545,973,404.30/818,960,106.45 = 545,973,404.30/x
  3. Step 3: Cross multiply
    545,973,404.30x = 818,960,106.45 × 545,973,404.30
  4. Step 4: Simplify right side
    545,973,404.30x = 447,130,437,304,396,864
  5. Step 5: Solve for x
    x = 447,130,437,304,396,864/545,973,404.30
  6. Step 6: Final answer
    x = 818,960,106.45

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Double scale
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Similar ratio
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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.