Home / 530,014.83-731,472.08-395,645.55

Finding the Fourth Proportional to 530,014.83, 731,472.08 and 395,645.55

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Solution

The fourth proportional to 530,014.83, 731,472.08 and 395,645.55 is: 546,029.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,014.83 : 731,472.08 = 395,645.55 : x
  2. Step 2: Convert to fraction form
    530,014.83/731,472.08 = 395,645.55/x
  3. Step 3: Cross multiply
    530,014.83x = 731,472.08 × 395,645.55
  4. Step 4: Simplify right side
    530,014.83x = 289,403,671,423.02
  5. Step 5: Solve for x
    x = 289,403,671,423.02/530,014.83
  6. Step 6: Final answer
    x = 546,029.38

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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.