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Finding the Fourth Proportional to 530,673.68, 732,326.56 and 288,955.68

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Solution

The fourth proportional to 530,673.68, 732,326.56 and 288,955.68 is: 398,757.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,673.68 : 732,326.56 = 288,955.68 : x
  2. Step 2: Convert to fraction form
    530,673.68/732,326.56 = 288,955.68/x
  3. Step 3: Cross multiply
    530,673.68x = 732,326.56 × 288,955.68
  4. Step 4: Simplify right side
    530,673.68x = 211,609,915,658.25
  5. Step 5: Solve for x
    x = 211,609,915,658.25/530,673.68
  6. Step 6: Final answer
    x = 398,757.13

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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.