Home / 630,072.16-869,499.63-343,594.29

Finding the Fourth Proportional to 630,072.16, 869,499.63 and 343,594.29

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Solution

The fourth proportional to 630,072.16, 869,499.63 and 343,594.29 is: 474,160.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,072.16 : 869,499.63 = 343,594.29 : x
  2. Step 2: Convert to fraction form
    630,072.16/869,499.63 = 343,594.29/x
  3. Step 3: Cross multiply
    630,072.16x = 869,499.63 × 343,594.29
  4. Step 4: Simplify right side
    630,072.16x = 298,755,108,025.11
  5. Step 5: Solve for x
    x = 298,755,108,025.11/630,072.16
  6. Step 6: Final answer
    x = 474,160.15

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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.