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Finding the Fourth Proportional to 661,566,345.45, 992,349,518.18 and 661,566,345.45

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Solution

The fourth proportional to 661,566,345.45, 992,349,518.18 and 661,566,345.45 is: 992,349,518.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,566,345.45 : 992,349,518.18 = 661,566,345.45 : x
  2. Step 2: Convert to fraction form
    661,566,345.45/992,349,518.18 = 661,566,345.45/x
  3. Step 3: Cross multiply
    661,566,345.45x = 992,349,518.18 × 661,566,345.45
  4. Step 4: Simplify right side
    661,566,345.45x = 656,505,044,148,103,168
  5. Step 5: Solve for x
    x = 656,505,044,148,103,168/661,566,345.45
  6. Step 6: Final answer
    x = 992,349,518.18

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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.