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Finding the Fourth Proportional to 586,415.43, 808,836 and 538,173.18

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Solution

The fourth proportional to 586,415.43, 808,836 and 538,173.18 is: 742,296.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,415.43 : 808,836 = 538,173.18 : x
  2. Step 2: Convert to fraction form
    586,415.43/808,836 = 538,173.18/x
  3. Step 3: Cross multiply
    586,415.43x = 808,836 × 538,173.18
  4. Step 4: Simplify right side
    586,415.43x = 435,293,842,218.48
  5. Step 5: Solve for x
    x = 435,293,842,218.48/586,415.43
  6. Step 6: Final answer
    x = 742,296.02

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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.