Home / 530,398.76-731,619.74-323,572.64

Finding the Fourth Proportional to 530,398.76, 731,619.74 and 323,572.64

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Solution

The fourth proportional to 530,398.76, 731,619.74 and 323,572.64 is: 446,328.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,398.76 : 731,619.74 = 323,572.64 : x
  2. Step 2: Convert to fraction form
    530,398.76/731,619.74 = 323,572.64/x
  3. Step 3: Cross multiply
    530,398.76x = 731,619.74 × 323,572.64
  4. Step 4: Simplify right side
    530,398.76x = 236,732,133,385.90
  5. Step 5: Solve for x
    x = 236,732,133,385.90/530,398.76
  6. Step 6: Final answer
    x = 446,328.60

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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.