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Finding the Fourth Proportional to 424,555.98, 585,643.95 and 265,303.50

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Solution

The fourth proportional to 424,555.98, 585,643.95 and 265,303.50 is: 365,966.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,555.98 : 585,643.95 = 265,303.50 : x
  2. Step 2: Convert to fraction form
    424,555.98/585,643.95 = 265,303.50/x
  3. Step 3: Cross multiply
    424,555.98x = 585,643.95 × 265,303.50
  4. Step 4: Simplify right side
    424,555.98x = 155,373,389,688.83
  5. Step 5: Solve for x
    x = 155,373,389,688.83/424,555.98
  6. Step 6: Final answer
    x = 365,966.79

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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.