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Finding the Fourth Proportional to 530,678.68, 732,333.46 and 288,960.68

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Solution

The fourth proportional to 530,678.68, 732,333.46 and 288,960.68 is: 398,764.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,678.68 : 732,333.46 = 288,960.68 : x
  2. Step 2: Convert to fraction form
    530,678.68/732,333.46 = 288,960.68/x
  3. Step 3: Cross multiply
    530,678.68x = 732,333.46 × 288,960.68
  4. Step 4: Simplify right side
    530,678.68x = 211,615,574,588.35
  5. Step 5: Solve for x
    x = 211,615,574,588.35/530,678.68
  6. Step 6: Final answer
    x = 398,764.04

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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.