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Finding the Fourth Proportional to 883,898.60, 1,219,780.16 and 481,490.60

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Solution

The fourth proportional to 883,898.60, 1,219,780.16 and 481,490.60 is: 664,457.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    883,898.60 : 1,219,780.16 = 481,490.60 : x
  2. Step 2: Convert to fraction form
    883,898.60/1,219,780.16 = 481,490.60/x
  3. Step 3: Cross multiply
    883,898.60x = 1,219,780.16 × 481,490.60
  4. Step 4: Simplify right side
    883,898.60x = 587,312,681,106.50
  5. Step 5: Solve for x
    x = 587,312,681,106.50/883,898.60
  6. Step 6: Final answer
    x = 664,457.08

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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.