Home / 530,119.23-731,509.92-315,217.77

Finding the Fourth Proportional to 530,119.23, 731,509.92 and 315,217.77

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Solution

The fourth proportional to 530,119.23, 731,509.92 and 315,217.77 is: 434,968.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,119.23 : 731,509.92 = 315,217.77 : x
  2. Step 2: Convert to fraction form
    530,119.23/731,509.92 = 315,217.77/x
  3. Step 3: Cross multiply
    530,119.23x = 731,509.92 × 315,217.77
  4. Step 4: Simplify right side
    530,119.23x = 230,584,925,715.28
  5. Step 5: Solve for x
    x = 230,584,925,715.28/530,119.23
  6. Step 6: Final answer
    x = 434,968.05

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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.