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Finding the Fourth Proportional to 549,641.72, 758,876.46 and 343,225.46

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Solution

The fourth proportional to 549,641.72, 758,876.46 and 343,225.46 is: 473,882.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,641.72 : 758,876.46 = 343,225.46 : x
  2. Step 2: Convert to fraction form
    549,641.72/758,876.46 = 343,225.46/x
  3. Step 3: Cross multiply
    549,641.72x = 758,876.46 × 343,225.46
  4. Step 4: Simplify right side
    549,641.72x = 260,465,722,066.67
  5. Step 5: Solve for x
    x = 260,465,722,066.67/549,641.72
  6. Step 6: Final answer
    x = 473,882.74

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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.