Home / 530,607.57-732,317.01-312,856.18

Finding the Fourth Proportional to 530,607.57, 732,317.01 and 312,856.18

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Solution

The fourth proportional to 530,607.57, 732,317.01 and 312,856.18 is: 431,787.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,607.57 : 732,317.01 = 312,856.18 : x
  2. Step 2: Convert to fraction form
    530,607.57/732,317.01 = 312,856.18/x
  3. Step 3: Cross multiply
    530,607.57x = 732,317.01 × 312,856.18
  4. Step 4: Simplify right side
    530,607.57x = 229,109,902,297.62
  5. Step 5: Solve for x
    x = 229,109,902,297.62/530,607.57
  6. Step 6: Final answer
    x = 431,787.85

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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.