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Finding the Fourth Proportional to 385,818.26, 578,604.69 and 360,630.50

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Solution

The fourth proportional to 385,818.26, 578,604.69 and 360,630.50 is: 540,831.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,818.26 : 578,604.69 = 360,630.50 : x
  2. Step 2: Convert to fraction form
    385,818.26/578,604.69 = 360,630.50/x
  3. Step 3: Cross multiply
    385,818.26x = 578,604.69 × 360,630.50
  4. Step 4: Simplify right side
    385,818.26x = 208,662,495,764.02
  5. Step 5: Solve for x
    x = 208,662,495,764.02/385,818.26
  6. Step 6: Final answer
    x = 540,831.06

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1.5x scale

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.