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Finding the Fourth Proportional to 472,042.05, 708,063.75 and 360,356.40

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Solution

The fourth proportional to 472,042.05, 708,063.75 and 360,356.40 is: 540,535.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,042.05 : 708,063.75 = 360,356.40 : x
  2. Step 2: Convert to fraction form
    472,042.05/708,063.75 = 360,356.40/x
  3. Step 3: Cross multiply
    472,042.05x = 708,063.75 × 360,356.40
  4. Step 4: Simplify right side
    472,042.05x = 255,155,303,920.50
  5. Step 5: Solve for x
    x = 255,155,303,920.50/472,042.05
  6. Step 6: Final answer
    x = 540,535.12

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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.