Home / 530,518.37-731,898.99-326,507.72

Finding the Fourth Proportional to 530,518.37, 731,898.99 and 326,507.72

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Solution

The fourth proportional to 530,518.37, 731,898.99 and 326,507.72 is: 450,447.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,518.37 : 731,898.99 = 326,507.72 : x
  2. Step 2: Convert to fraction form
    530,518.37/731,898.99 = 326,507.72/x
  3. Step 3: Cross multiply
    530,518.37x = 731,898.99 × 326,507.72
  4. Step 4: Simplify right side
    530,518.37x = 238,970,666,835.71
  5. Step 5: Solve for x
    x = 238,970,666,835.71/530,518.37
  6. Step 6: Final answer
    x = 450,447.49

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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.