Home / 999,080.16-1,378,312.48-654,998.72

Finding the Fourth Proportional to 999,080.16, 1,378,312.48 and 654,998.72

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Solution

The fourth proportional to 999,080.16, 1,378,312.48 and 654,998.72 is: 903,624.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,080.16 : 1,378,312.48 = 654,998.72 : x
  2. Step 2: Convert to fraction form
    999,080.16/1,378,312.48 = 654,998.72/x
  3. Step 3: Cross multiply
    999,080.16x = 1,378,312.48 × 654,998.72
  4. Step 4: Simplify right side
    999,080.16x = 902,792,910,160.03
  5. Step 5: Solve for x
    x = 902,792,910,160.03/999,080.16
  6. Step 6: Final answer
    x = 903,624.10

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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.