Home / 651,726,005.70-977,589,008.55-621,492,917.70

Finding the Fourth Proportional to 651,726,005.70, 977,589,008.55 and 621,492,917.70

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Solution

The fourth proportional to 651,726,005.70, 977,589,008.55 and 621,492,917.70 is: 932,239,376.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,726,005.70 : 977,589,008.55 = 621,492,917.70 : x
  2. Step 2: Convert to fraction form
    651,726,005.70/977,589,008.55 = 621,492,917.70/x
  3. Step 3: Cross multiply
    651,726,005.70x = 977,589,008.55 × 621,492,917.70
  4. Step 4: Simplify right side
    651,726,005.70x = 607,564,645,235,189,760
  5. Step 5: Solve for x
    x = 607,564,645,235,189,760/651,726,005.70
  6. Step 6: Final answer
    x = 932,239,376.55

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Double scale
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Similar ratio
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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.