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Finding the Fourth Proportional to 469,593.19, 648,038.55 and 265,639.74

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Solution

The fourth proportional to 469,593.19, 648,038.55 and 265,639.74 is: 366,582.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,593.19 : 648,038.55 = 265,639.74 : x
  2. Step 2: Convert to fraction form
    469,593.19/648,038.55 = 265,639.74/x
  3. Step 3: Cross multiply
    469,593.19x = 648,038.55 × 265,639.74
  4. Step 4: Simplify right side
    469,593.19x = 172,144,791,931.98
  5. Step 5: Solve for x
    x = 172,144,791,931.98/469,593.19
  6. Step 6: Final answer
    x = 366,582.81

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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.