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Finding the Fourth Proportional to 586,298.10, 879,447.15 and 186,935.70

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Solution

The fourth proportional to 586,298.10, 879,447.15 and 186,935.70 is: 280,403.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,298.10 : 879,447.15 = 186,935.70 : x
  2. Step 2: Convert to fraction form
    586,298.10/879,447.15 = 186,935.70/x
  3. Step 3: Cross multiply
    586,298.10x = 879,447.15 × 186,935.70
  4. Step 4: Simplify right side
    586,298.10x = 164,400,068,598.26
  5. Step 5: Solve for x
    x = 164,400,068,598.26/586,298.10
  6. Step 6: Final answer
    x = 280,403.55

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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.