Home / 826,529.91-1,140,317.89-540,215.16

Finding the Fourth Proportional to 826,529.91, 1,140,317.89 and 540,215.16

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Solution

The fourth proportional to 826,529.91, 1,140,317.89 and 540,215.16 is: 745,305.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,529.91 : 1,140,317.89 = 540,215.16 : x
  2. Step 2: Convert to fraction form
    826,529.91/1,140,317.89 = 540,215.16/x
  3. Step 3: Cross multiply
    826,529.91x = 1,140,317.89 × 540,215.16
  4. Step 4: Simplify right side
    826,529.91x = 616,017,011,397.21
  5. Step 5: Solve for x
    x = 616,017,011,397.21/826,529.91
  6. Step 6: Final answer
    x = 745,305.17

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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.