Home / 545,126.20-812,095.18-520,534.10

Finding the Fourth Proportional to 545,126.20, 812,095.18 and 520,534.10

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Solution

The fourth proportional to 545,126.20, 812,095.18 and 520,534.10 is: 775,459.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,126.20 : 812,095.18 = 520,534.10 : x
  2. Step 2: Convert to fraction form
    545,126.20/812,095.18 = 520,534.10/x
  3. Step 3: Cross multiply
    545,126.20x = 812,095.18 × 520,534.10
  4. Step 4: Simplify right side
    545,126.20x = 422,723,233,635.64
  5. Step 5: Solve for x
    x = 422,723,233,635.64/545,126.20
  6. Step 6: Final answer
    x = 775,459.40

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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.