Home / 651,603.40-977,405.10-494,139.40

Finding the Fourth Proportional to 651,603.40, 977,405.10 and 494,139.40

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Solution

The fourth proportional to 651,603.40, 977,405.10 and 494,139.40 is: 741,209.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,603.40 : 977,405.10 = 494,139.40 : x
  2. Step 2: Convert to fraction form
    651,603.40/977,405.10 = 494,139.40/x
  3. Step 3: Cross multiply
    651,603.40x = 977,405.10 × 494,139.40
  4. Step 4: Simplify right side
    651,603.40x = 482,974,369,670.94
  5. Step 5: Solve for x
    x = 482,974,369,670.94/651,603.40
  6. Step 6: Final answer
    x = 741,209.10

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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.