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Finding the Fourth Proportional to 479,316,612.60, 718,974,918.90 and 479,316,612.60

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Solution

The fourth proportional to 479,316,612.60, 718,974,918.90 and 479,316,612.60 is: 718,974,918.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,316,612.60 : 718,974,918.90 = 479,316,612.60 : x
  2. Step 2: Convert to fraction form
    479,316,612.60/718,974,918.90 = 479,316,612.60/x
  3. Step 3: Cross multiply
    479,316,612.60x = 718,974,918.90 × 479,316,612.60
  4. Step 4: Simplify right side
    479,316,612.60x = 344,616,622,671,507,712
  5. Step 5: Solve for x
    x = 344,616,622,671,507,712/479,316,612.60
  6. Step 6: Final answer
    x = 718,974,918.90

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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.