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Finding the Fourth Proportional to 357,664.80, 535,622.40 and 170,457.60

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Solution

The fourth proportional to 357,664.80, 535,622.40 and 170,457.60 is: 255,269.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,664.80 : 535,622.40 = 170,457.60 : x
  2. Step 2: Convert to fraction form
    357,664.80/535,622.40 = 170,457.60/x
  3. Step 3: Cross multiply
    357,664.80x = 535,622.40 × 170,457.60
  4. Step 4: Simplify right side
    357,664.80x = 91,300,908,810.24
  5. Step 5: Solve for x
    x = 91,300,908,810.24/357,664.80
  6. Step 6: Final answer
    x = 255,269.48

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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.