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Finding the Fourth Proportional to 434,316.57, 599,390.82 and 279,406.19

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Solution

The fourth proportional to 434,316.57, 599,390.82 and 279,406.19 is: 385,602.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,316.57 : 599,390.82 = 279,406.19 : x
  2. Step 2: Convert to fraction form
    434,316.57/599,390.82 = 279,406.19/x
  3. Step 3: Cross multiply
    434,316.57x = 599,390.82 × 279,406.19
  4. Step 4: Simplify right side
    434,316.57x = 167,473,506,835.65
  5. Step 5: Solve for x
    x = 167,473,506,835.65/434,316.57
  6. Step 6: Final answer
    x = 385,602.39

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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.