Home / 1,030,257.88-1,421,841-571,520.36

Finding the Fourth Proportional to 1,030,257.88, 1,421,841 and 571,520.36

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Solution

The fourth proportional to 1,030,257.88, 1,421,841 and 571,520.36 is: 788,745.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,030,257.88 : 1,421,841 = 571,520.36 : x
  2. Step 2: Convert to fraction form
    1,030,257.88/1,421,841 = 571,520.36/x
  3. Step 3: Cross multiply
    1,030,257.88x = 1,421,841 × 571,520.36
  4. Step 4: Simplify right side
    1,030,257.88x = 812,611,080,182.76
  5. Step 5: Solve for x
    x = 812,611,080,182.76/1,030,257.88
  6. Step 6: Final answer
    x = 788,745.32

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Double scale
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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.