Home / 656,025.11-980,443.34-478,905.11

Finding the Fourth Proportional to 656,025.11, 980,443.34 and 478,905.11

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Solution

The fourth proportional to 656,025.11, 980,443.34 and 478,905.11 is: 715,733.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,025.11 : 980,443.34 = 478,905.11 : x
  2. Step 2: Convert to fraction form
    656,025.11/980,443.34 = 478,905.11/x
  3. Step 3: Cross multiply
    656,025.11x = 980,443.34 × 478,905.11
  4. Step 4: Simplify right side
    656,025.11x = 469,539,323,767.28
  5. Step 5: Solve for x
    x = 469,539,323,767.28/656,025.11
  6. Step 6: Final answer
    x = 715,733.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.