Home / 530,647.20-732,306.24-288,943.02

Finding the Fourth Proportional to 530,647.20, 732,306.24 and 288,943.02

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Solution

The fourth proportional to 530,647.20, 732,306.24 and 288,943.02 is: 398,748.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,647.20 : 732,306.24 = 288,943.02 : x
  2. Step 2: Convert to fraction form
    530,647.20/732,306.24 = 288,943.02/x
  3. Step 3: Cross multiply
    530,647.20x = 732,306.24 × 288,943.02
  4. Step 4: Simplify right side
    530,647.20x = 211,594,776,550.45
  5. Step 5: Solve for x
    x = 211,594,776,550.45/530,647.20
  6. Step 6: Final answer
    x = 398,748.50

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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.