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Finding the Fourth Proportional to 528,513.60, 793,288.80 and 262,574.40

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Solution

The fourth proportional to 528,513.60, 793,288.80 and 262,574.40 is: 394,119.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,513.60 : 793,288.80 = 262,574.40 : x
  2. Step 2: Convert to fraction form
    528,513.60/793,288.80 = 262,574.40/x
  3. Step 3: Cross multiply
    528,513.60x = 793,288.80 × 262,574.40
  4. Step 4: Simplify right side
    528,513.60x = 208,297,330,686.72
  5. Step 5: Solve for x
    x = 208,297,330,686.72/528,513.60
  6. Step 6: Final answer
    x = 394,119.15

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1.5x scale

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.