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Finding the Fourth Proportional to 1,212,801,694.03, 1,673,671,381.32 and 655,884,741.10

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Solution

The fourth proportional to 1,212,801,694.03, 1,673,671,381.32 and 655,884,741.10 is: 905,123,670.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,801,694.03 : 1,673,671,381.32 = 655,884,741.10 : x
  2. Step 2: Convert to fraction form
    1,212,801,694.03/1,673,671,381.32 = 655,884,741.10/x
  3. Step 3: Cross multiply
    1,212,801,694.03x = 1,673,671,381.32 × 655,884,741.10
  4. Step 4: Simplify right side
    1,212,801,694.03x = 1,097,735,520,623,547,520
  5. Step 5: Solve for x
    x = 1,097,735,520,623,547,520/1,212,801,694.03
  6. Step 6: Final answer
    x = 905,123,670.28

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.