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Finding the Fourth Proportional to 514,981.17, 772,324.12 and 155,186.86

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Solution

The fourth proportional to 514,981.17, 772,324.12 and 155,186.86 is: 232,735.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,981.17 : 772,324.12 = 155,186.86 : x
  2. Step 2: Convert to fraction form
    514,981.17/772,324.12 = 155,186.86/x
  3. Step 3: Cross multiply
    514,981.17x = 772,324.12 × 155,186.86
  4. Step 4: Simplify right side
    514,981.17x = 119,854,555,085.06
  5. Step 5: Solve for x
    x = 119,854,555,085.06/514,981.17
  6. Step 6: Final answer
    x = 232,735.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.