Home / 545,125.20-812,093.69-520,533.10

Finding the Fourth Proportional to 545,125.20, 812,093.69 and 520,533.10

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Solution

The fourth proportional to 545,125.20, 812,093.69 and 520,533.10 is: 775,457.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,125.20 : 812,093.69 = 520,533.10 : x
  2. Step 2: Convert to fraction form
    545,125.20/812,093.69 = 520,533.10/x
  3. Step 3: Cross multiply
    545,125.20x = 812,093.69 × 520,533.10
  4. Step 4: Simplify right side
    545,125.20x = 422,721,642,900.79
  5. Step 5: Solve for x
    x = 422,721,642,900.79/545,125.20
  6. Step 6: Final answer
    x = 775,457.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.