Home / 727,782.17-1,086,555.92-556,105.40

Finding the Fourth Proportional to 727,782.17, 1,086,555.92 and 556,105.40

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Solution

The fourth proportional to 727,782.17, 1,086,555.92 and 556,105.40 is: 830,247.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,782.17 : 1,086,555.92 = 556,105.40 : x
  2. Step 2: Convert to fraction form
    727,782.17/1,086,555.92 = 556,105.40/x
  3. Step 3: Cross multiply
    727,782.17x = 1,086,555.92 × 556,105.40
  4. Step 4: Simplify right side
    727,782.17x = 604,239,613,503.34
  5. Step 5: Solve for x
    x = 604,239,613,503.34/727,782.17
  6. Step 6: Final answer
    x = 830,247.90

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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.