Home / 614,311.20-921,466.80-579,319.20

Finding the Fourth Proportional to 614,311.20, 921,466.80 and 579,319.20

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Solution

The fourth proportional to 614,311.20, 921,466.80 and 579,319.20 is: 868,978.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,311.20 : 921,466.80 = 579,319.20 : x
  2. Step 2: Convert to fraction form
    614,311.20/921,466.80 = 579,319.20/x
  3. Step 3: Cross multiply
    614,311.20x = 921,466.80 × 579,319.20
  4. Step 4: Simplify right side
    614,311.20x = 533,823,409,402.56
  5. Step 5: Solve for x
    x = 533,823,409,402.56/614,311.20
  6. Step 6: Final answer
    x = 868,978.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.