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Finding the Fourth Proportional to 284,168,066.40, 398,238,400.80 and 284,168,066.40

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Solution

The fourth proportional to 284,168,066.40, 398,238,400.80 and 284,168,066.40 is: 398,238,400.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,168,066.40 : 398,238,400.80 = 284,168,066.40 : x
  2. Step 2: Convert to fraction form
    284,168,066.40/398,238,400.80 = 284,168,066.40/x
  3. Step 3: Cross multiply
    284,168,066.40x = 398,238,400.80 × 284,168,066.40
  4. Step 4: Simplify right side
    284,168,066.40x = 113,166,636,321,564,208
  5. Step 5: Solve for x
    x = 113,166,636,321,564,208/284,168,066.40
  6. Step 6: Final answer
    x = 398,238,400.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.