Home / 864,088.29-1,294,395.93-430,498.80

Finding the Fourth Proportional to 864,088.29, 1,294,395.93 and 430,498.80

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Solution

The fourth proportional to 864,088.29, 1,294,395.93 and 430,498.80 is: 644,883.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,088.29 : 1,294,395.93 = 430,498.80 : x
  2. Step 2: Convert to fraction form
    864,088.29/1,294,395.93 = 430,498.80/x
  3. Step 3: Cross multiply
    864,088.29x = 1,294,395.93 × 430,498.80
  4. Step 4: Simplify right side
    864,088.29x = 557,235,894,589.88
  5. Step 5: Solve for x
    x = 557,235,894,589.88/864,088.29
  6. Step 6: Final answer
    x = 644,883.05

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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.