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Finding the Fourth Proportional to 545,598,613.80, 818,397,920.70 and 545,598,613.80

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Solution

The fourth proportional to 545,598,613.80, 818,397,920.70 and 545,598,613.80 is: 818,397,920.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,598,613.80 : 818,397,920.70 = 545,598,613.80 : x
  2. Step 2: Convert to fraction form
    545,598,613.80/818,397,920.70 = 545,598,613.80/x
  3. Step 3: Cross multiply
    545,598,613.80x = 818,397,920.70 × 545,598,613.80
  4. Step 4: Simplify right side
    545,598,613.80x = 446,516,771,070,722,304
  5. Step 5: Solve for x
    x = 446,516,771,070,722,304/545,598,613.80
  6. Step 6: Final answer
    x = 818,397,920.70

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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.