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Finding the Fourth Proportional to 504,281.60, 695,941.60 and 289,491.20

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Solution

The fourth proportional to 504,281.60, 695,941.60 and 289,491.20 is: 399,516.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,281.60 : 695,941.60 = 289,491.20 : x
  2. Step 2: Convert to fraction form
    504,281.60/695,941.60 = 289,491.20/x
  3. Step 3: Cross multiply
    504,281.60x = 695,941.60 × 289,491.20
  4. Step 4: Simplify right side
    504,281.60x = 201,468,968,913.92
  5. Step 5: Solve for x
    x = 201,468,968,913.92/504,281.60
  6. Step 6: Final answer
    x = 399,516.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.