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Finding the Fourth Proportional to 530,339.22, 732,139.29 and 409,208.58

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Solution

The fourth proportional to 530,339.22, 732,139.29 and 409,208.58 is: 564,917.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,339.22 : 732,139.29 = 409,208.58 : x
  2. Step 2: Convert to fraction form
    530,339.22/732,139.29 = 409,208.58/x
  3. Step 3: Cross multiply
    530,339.22x = 732,139.29 × 409,208.58
  4. Step 4: Simplify right side
    530,339.22x = 299,597,679,223.11
  5. Step 5: Solve for x
    x = 299,597,679,223.11/530,339.22
  6. Step 6: Final answer
    x = 564,917.07

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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.