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Finding the Fourth Proportional to 586,415.80, 808,836.74 and 538,173.64

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Solution

The fourth proportional to 586,415.80, 808,836.74 and 538,173.64 is: 742,296.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,415.80 : 808,836.74 = 538,173.64 : x
  2. Step 2: Convert to fraction form
    586,415.80/808,836.74 = 538,173.64/x
  3. Step 3: Cross multiply
    586,415.80x = 808,836.74 × 538,173.64
  4. Step 4: Simplify right side
    586,415.80x = 435,294,612,531.53
  5. Step 5: Solve for x
    x = 435,294,612,531.53/586,415.80
  6. Step 6: Final answer
    x = 742,296.87

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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.