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Finding the Fourth Proportional to 578,968.94, 798,985.14 and 333,948.80

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Solution

The fourth proportional to 578,968.94, 798,985.14 and 333,948.80 is: 460,853.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,968.94 : 798,985.14 = 333,948.80 : x
  2. Step 2: Convert to fraction form
    578,968.94/798,985.14 = 333,948.80/x
  3. Step 3: Cross multiply
    578,968.94x = 798,985.14 × 333,948.80
  4. Step 4: Simplify right side
    578,968.94x = 266,820,128,720.83
  5. Step 5: Solve for x
    x = 266,820,128,720.83/578,968.94
  6. Step 6: Final answer
    x = 460,853.96

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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.