Home / 917,610.19-1,376,707.79-384,988.21

Finding the Fourth Proportional to 917,610.19, 1,376,707.79 and 384,988.21

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Solution

The fourth proportional to 917,610.19, 1,376,707.79 and 384,988.21 is: 577,605.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,610.19 : 1,376,707.79 = 384,988.21 : x
  2. Step 2: Convert to fraction form
    917,610.19/1,376,707.79 = 384,988.21/x
  3. Step 3: Cross multiply
    917,610.19x = 1,376,707.79 × 384,988.21
  4. Step 4: Simplify right side
    917,610.19x = 530,016,265,285.86
  5. Step 5: Solve for x
    x = 530,016,265,285.86/917,610.19
  6. Step 6: Final answer
    x = 577,605.04

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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.