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Finding the Fourth Proportional to 906,977,166.30, 1,360,465,749.45 and 725,578,638.30

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Solution

The fourth proportional to 906,977,166.30, 1,360,465,749.45 and 725,578,638.30 is: 1,088,367,957.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,977,166.30 : 1,360,465,749.45 = 725,578,638.30 : x
  2. Step 2: Convert to fraction form
    906,977,166.30/1,360,465,749.45 = 725,578,638.30/x
  3. Step 3: Cross multiply
    906,977,166.30x = 1,360,465,749.45 × 725,578,638.30
  4. Step 4: Simplify right side
    906,977,166.30x = 987,124,885,939,719,936
  5. Step 5: Solve for x
    x = 987,124,885,939,719,936/906,977,166.30
  6. Step 6: Final answer
    x = 1,088,367,957.45

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Double scale
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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.