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Finding the Fourth Proportional to 926,483.60, 1,387,392.60 and 609,222.80

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Solution

The fourth proportional to 926,483.60, 1,387,392.60 and 609,222.80 is: 912,300.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,483.60 : 1,387,392.60 = 609,222.80 : x
  2. Step 2: Convert to fraction form
    926,483.60/1,387,392.60 = 609,222.80/x
  3. Step 3: Cross multiply
    926,483.60x = 1,387,392.60 × 609,222.80
  4. Step 4: Simplify right side
    926,483.60x = 845,231,204,471.28
  5. Step 5: Solve for x
    x = 845,231,204,471.28/926,483.60
  6. Step 6: Final answer
    x = 912,300.23

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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.