Home / 649,543,040.10-974,314,560.15-643,803,477.30

Finding the Fourth Proportional to 649,543,040.10, 974,314,560.15 and 643,803,477.30

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Solution

The fourth proportional to 649,543,040.10, 974,314,560.15 and 643,803,477.30 is: 965,705,215.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,543,040.10 : 974,314,560.15 = 643,803,477.30 : x
  2. Step 2: Convert to fraction form
    649,543,040.10/974,314,560.15 = 643,803,477.30/x
  3. Step 3: Cross multiply
    649,543,040.10x = 974,314,560.15 × 643,803,477.30
  4. Step 4: Simplify right side
    649,543,040.10x = 627,267,101,808,589,952
  5. Step 5: Solve for x
    x = 627,267,101,808,589,952/649,543,040.10
  6. Step 6: Final answer
    x = 965,705,215.95

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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.