Home / 850,328.40-1,173,408.82-528,031.56

Finding the Fourth Proportional to 850,328.40, 1,173,408.82 and 528,031.56

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Solution

The fourth proportional to 850,328.40, 1,173,408.82 and 528,031.56 is: 728,656.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,328.40 : 1,173,408.82 = 528,031.56 : x
  2. Step 2: Convert to fraction form
    850,328.40/1,173,408.82 = 528,031.56/x
  3. Step 3: Cross multiply
    850,328.40x = 1,173,408.82 × 528,031.56
  4. Step 4: Simplify right side
    850,328.40x = 619,596,889,742.36
  5. Step 5: Solve for x
    x = 619,596,889,742.36/850,328.40
  6. Step 6: Final answer
    x = 728,656.00

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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.