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Finding the Fourth Proportional to 625,365.80, 936,666.30 and 484,015.40

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Solution

The fourth proportional to 625,365.80, 936,666.30 and 484,015.40 is: 724,953.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,365.80 : 936,666.30 = 484,015.40 : x
  2. Step 2: Convert to fraction form
    625,365.80/936,666.30 = 484,015.40/x
  3. Step 3: Cross multiply
    625,365.80x = 936,666.30 × 484,015.40
  4. Step 4: Simplify right side
    625,365.80x = 453,360,913,861.02
  5. Step 5: Solve for x
    x = 453,360,913,861.02/625,365.80
  6. Step 6: Final answer
    x = 724,953.16

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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.