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Finding the Fourth Proportional to 623,660.80, 934,876.80 and 308,166.40

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Solution

The fourth proportional to 623,660.80, 934,876.80 and 308,166.40 is: 461,946.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,660.80 : 934,876.80 = 308,166.40 : x
  2. Step 2: Convert to fraction form
    623,660.80/934,876.80 = 308,166.40/x
  3. Step 3: Cross multiply
    623,660.80x = 934,876.80 × 308,166.40
  4. Step 4: Simplify right side
    623,660.80x = 288,097,617,899.52
  5. Step 5: Solve for x
    x = 288,097,617,899.52/623,660.80
  6. Step 6: Final answer
    x = 461,946.01

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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.