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Finding the Fourth Proportional to 346,685.60, 486,409.60 and 346,685.60

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Solution

The fourth proportional to 346,685.60, 486,409.60 and 346,685.60 is: 486,409.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,685.60 : 486,409.60 = 346,685.60 : x
  2. Step 2: Convert to fraction form
    346,685.60/486,409.60 = 346,685.60/x
  3. Step 3: Cross multiply
    346,685.60x = 486,409.60 × 346,685.60
  4. Step 4: Simplify right side
    346,685.60x = 168,631,204,021.76
  5. Step 5: Solve for x
    x = 168,631,204,021.76/346,685.60
  6. Step 6: Final answer
    x = 486,409.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.