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Finding the Fourth Proportional to 640,044.94, 883,227.90 and 368,069.62

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Solution

The fourth proportional to 640,044.94, 883,227.90 and 368,069.62 is: 507,916.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,044.94 : 883,227.90 = 368,069.62 : x
  2. Step 2: Convert to fraction form
    640,044.94/883,227.90 = 368,069.62/x
  3. Step 3: Cross multiply
    640,044.94x = 883,227.90 × 368,069.62
  4. Step 4: Simplify right side
    640,044.94x = 325,089,357,526.40
  5. Step 5: Solve for x
    x = 325,089,357,526.40/640,044.94
  6. Step 6: Final answer
    x = 507,916.46

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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.