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Finding the Fourth Proportional to 549,341.66, 758,113.09 and 307,622.10

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Solution

The fourth proportional to 549,341.66, 758,113.09 and 307,622.10 is: 424,530.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,341.66 : 758,113.09 = 307,622.10 : x
  2. Step 2: Convert to fraction form
    549,341.66/758,113.09 = 307,622.10/x
  3. Step 3: Cross multiply
    549,341.66x = 758,113.09 × 307,622.10
  4. Step 4: Simplify right side
    549,341.66x = 233,212,340,783.29
  5. Step 5: Solve for x
    x = 233,212,340,783.29/549,341.66
  6. Step 6: Final answer
    x = 424,530.59

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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.