Home / 651,619.40-977,429.10-494,155.40

Finding the Fourth Proportional to 651,619.40, 977,429.10 and 494,155.40

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Solution

The fourth proportional to 651,619.40, 977,429.10 and 494,155.40 is: 741,233.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,619.40 : 977,429.10 = 494,155.40 : x
  2. Step 2: Convert to fraction form
    651,619.40/977,429.10 = 494,155.40/x
  3. Step 3: Cross multiply
    651,619.40x = 977,429.10 × 494,155.40
  4. Step 4: Simplify right side
    651,619.40x = 483,001,867,882.14
  5. Step 5: Solve for x
    x = 483,001,867,882.14/651,619.40
  6. Step 6: Final answer
    x = 741,233.10

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Half scale
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Double scale
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Similar ratio
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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.