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Finding the Fourth Proportional to 607,057.60, 910,586.40 and 291,438.40

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Solution

The fourth proportional to 607,057.60, 910,586.40 and 291,438.40 is: 437,157.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,057.60 : 910,586.40 = 291,438.40 : x
  2. Step 2: Convert to fraction form
    607,057.60/910,586.40 = 291,438.40/x
  3. Step 3: Cross multiply
    607,057.60x = 910,586.40 × 291,438.40
  4. Step 4: Simplify right side
    607,057.60x = 265,379,843,477.76
  5. Step 5: Solve for x
    x = 265,379,843,477.76/607,057.60
  6. Step 6: Final answer
    x = 437,157.60

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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.