Home / 912,261.60-1,258,982.64-530,287.20

Finding the Fourth Proportional to 912,261.60, 1,258,982.64 and 530,287.20

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Solution

The fourth proportional to 912,261.60, 1,258,982.64 and 530,287.20 is: 731,832.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,261.60 : 1,258,982.64 = 530,287.20 : x
  2. Step 2: Convert to fraction form
    912,261.60/1,258,982.64 = 530,287.20/x
  3. Step 3: Cross multiply
    912,261.60x = 1,258,982.64 × 530,287.20
  4. Step 4: Simplify right side
    912,261.60x = 667,622,379,014.21
  5. Step 5: Solve for x
    x = 667,622,379,014.21/912,261.60
  6. Step 6: Final answer
    x = 731,832.16

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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.