Home / 621,706.59-858,031.38-349,786.35

Finding the Fourth Proportional to 621,706.59, 858,031.38 and 349,786.35

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Solution

The fourth proportional to 621,706.59, 858,031.38 and 349,786.35 is: 482,748.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,706.59 : 858,031.38 = 349,786.35 : x
  2. Step 2: Convert to fraction form
    621,706.59/858,031.38 = 349,786.35/x
  3. Step 3: Cross multiply
    621,706.59x = 858,031.38 × 349,786.35
  4. Step 4: Simplify right side
    621,706.59x = 300,127,664,595.66
  5. Step 5: Solve for x
    x = 300,127,664,595.66/621,706.59
  6. Step 6: Final answer
    x = 482,748.08

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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.