Home / 877,644.72-1,211,147.64-475,236.72

Finding the Fourth Proportional to 877,644.72, 1,211,147.64 and 475,236.72

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Solution

The fourth proportional to 877,644.72, 1,211,147.64 and 475,236.72 is: 655,825.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,644.72 : 1,211,147.64 = 475,236.72 : x
  2. Step 2: Convert to fraction form
    877,644.72/1,211,147.64 = 475,236.72/x
  3. Step 3: Cross multiply
    877,644.72x = 1,211,147.64 × 475,236.72
  4. Step 4: Simplify right side
    877,644.72x = 575,581,831,869.34
  5. Step 5: Solve for x
    x = 575,581,831,869.34/877,644.72
  6. Step 6: Final answer
    x = 655,825.55

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.