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Finding the Fourth Proportional to 586,507.69, 878,253.63 and 406,336.60

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Solution

The fourth proportional to 586,507.69, 878,253.63 and 406,336.60 is: 608,460.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,507.69 : 878,253.63 = 406,336.60 : x
  2. Step 2: Convert to fraction form
    586,507.69/878,253.63 = 406,336.60/x
  3. Step 3: Cross multiply
    586,507.69x = 878,253.63 × 406,336.60
  4. Step 4: Simplify right side
    586,507.69x = 356,866,593,951.86
  5. Step 5: Solve for x
    x = 356,866,593,951.86/586,507.69
  6. Step 6: Final answer
    x = 608,460.21

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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.