Home / 651,436.60-977,385.30-628,396.60

Finding the Fourth Proportional to 651,436.60, 977,385.30 and 628,396.60

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Solution

The fourth proportional to 651,436.60, 977,385.30 and 628,396.60 is: 942,817.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,436.60 : 977,385.30 = 628,396.60 : x
  2. Step 2: Convert to fraction form
    651,436.60/977,385.30 = 628,396.60/x
  3. Step 3: Cross multiply
    651,436.60x = 977,385.30 × 628,396.60
  4. Step 4: Simplify right side
    651,436.60x = 614,185,599,409.98
  5. Step 5: Solve for x
    x = 614,185,599,409.98/651,436.60
  6. Step 6: Final answer
    x = 942,817.15

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Double scale
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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.