Home / 651,275.60-977,143.80-628,235.60

Finding the Fourth Proportional to 651,275.60, 977,143.80 and 628,235.60

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Solution

The fourth proportional to 651,275.60, 977,143.80 and 628,235.60 is: 942,575.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,275.60 : 977,143.80 = 628,235.60 : x
  2. Step 2: Convert to fraction form
    651,275.60/977,143.80 = 628,235.60/x
  3. Step 3: Cross multiply
    651,275.60x = 977,143.80 × 628,235.60
  4. Step 4: Simplify right side
    651,275.60x = 613,876,521,479.28
  5. Step 5: Solve for x
    x = 613,876,521,479.28/651,275.60
  6. Step 6: Final answer
    x = 942,575.65

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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.