Home / 651,343.80-977,015.70-617,129.40

Finding the Fourth Proportional to 651,343.80, 977,015.70 and 617,129.40

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Solution

The fourth proportional to 651,343.80, 977,015.70 and 617,129.40 is: 925,694.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,343.80 : 977,015.70 = 617,129.40 : x
  2. Step 2: Convert to fraction form
    651,343.80/977,015.70 = 617,129.40/x
  3. Step 3: Cross multiply
    651,343.80x = 977,015.70 × 617,129.40
  4. Step 4: Simplify right side
    651,343.80x = 602,945,112,731.58
  5. Step 5: Solve for x
    x = 602,945,112,731.58/651,343.80
  6. Step 6: Final answer
    x = 925,694.10

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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.