Home / 621,044.40-931,566.60-306,116.40

Finding the Fourth Proportional to 621,044.40, 931,566.60 and 306,116.40

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Solution

The fourth proportional to 621,044.40, 931,566.60 and 306,116.40 is: 459,174.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,044.40 : 931,566.60 = 306,116.40 : x
  2. Step 2: Convert to fraction form
    621,044.40/931,566.60 = 306,116.40/x
  3. Step 3: Cross multiply
    621,044.40x = 931,566.60 × 306,116.40
  4. Step 4: Simplify right side
    621,044.40x = 285,167,813,952.24
  5. Step 5: Solve for x
    x = 285,167,813,952.24/621,044.40
  6. Step 6: Final answer
    x = 459,174.60

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Half scale
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Double scale
Find fourth proportional to 621,045.40, 931,568.10 and 306,117.40
Similar ratio
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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.