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Finding the Fourth Proportional to 549,908.61, 824,925.20 and 493,401.54

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Solution

The fourth proportional to 549,908.61, 824,925.20 and 493,401.54 is: 740,158.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,908.61 : 824,925.20 = 493,401.54 : x
  2. Step 2: Convert to fraction form
    549,908.61/824,925.20 = 493,401.54/x
  3. Step 3: Cross multiply
    549,908.61x = 824,925.20 × 493,401.54
  4. Step 4: Simplify right side
    549,908.61x = 407,019,364,064.81
  5. Step 5: Solve for x
    x = 407,019,364,064.81/549,908.61
  6. Step 6: Final answer
    x = 740,158.19

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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.