Home / 857,554.83-1,287,103.23-458,536.68

Finding the Fourth Proportional to 857,554.83, 1,287,103.23 and 458,536.68

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Solution

The fourth proportional to 857,554.83, 1,287,103.23 and 458,536.68 is: 688,217.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,554.83 : 1,287,103.23 = 458,536.68 : x
  2. Step 2: Convert to fraction form
    857,554.83/1,287,103.23 = 458,536.68/x
  3. Step 3: Cross multiply
    857,554.83x = 1,287,103.23 × 458,536.68
  4. Step 4: Simplify right side
    857,554.83x = 590,184,041,901.48
  5. Step 5: Solve for x
    x = 590,184,041,901.48/857,554.83
  6. Step 6: Final answer
    x = 688,217.27

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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.