Home / 770,528.20-1,154,237.10-437,715.40

Finding the Fourth Proportional to 770,528.20, 1,154,237.10 and 437,715.40

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Solution

The fourth proportional to 770,528.20, 1,154,237.10 and 437,715.40 is: 655,689.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,528.20 : 1,154,237.10 = 437,715.40 : x
  2. Step 2: Convert to fraction form
    770,528.20/1,154,237.10 = 437,715.40/x
  3. Step 3: Cross multiply
    770,528.20x = 1,154,237.10 × 437,715.40
  4. Step 4: Simplify right side
    770,528.20x = 505,227,353,921.34
  5. Step 5: Solve for x
    x = 505,227,353,921.34/770,528.20
  6. Step 6: Final answer
    x = 655,689.63

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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.