Home / 656,403.60-984,554.20-256,966.80

Finding the Fourth Proportional to 656,403.60, 984,554.20 and 256,966.80

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Solution

The fourth proportional to 656,403.60, 984,554.20 and 256,966.80 is: 385,430.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,403.60 : 984,554.20 = 256,966.80 : x
  2. Step 2: Convert to fraction form
    656,403.60/984,554.20 = 256,966.80/x
  3. Step 3: Cross multiply
    656,403.60x = 984,554.20 × 256,966.80
  4. Step 4: Simplify right side
    656,403.60x = 252,997,742,200.56
  5. Step 5: Solve for x
    x = 252,997,742,200.56/656,403.60
  6. Step 6: Final answer
    x = 385,430.16

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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.