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Finding the Fourth Proportional to 528,095.55, 792,143.33 and 440,615.55

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Solution

The fourth proportional to 528,095.55, 792,143.33 and 440,615.55 is: 660,923.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,095.55 : 792,143.33 = 440,615.55 : x
  2. Step 2: Convert to fraction form
    528,095.55/792,143.33 = 440,615.55/x
  3. Step 3: Cross multiply
    528,095.55x = 792,143.33 × 440,615.55
  4. Step 4: Simplify right side
    528,095.55x = 349,030,666,823.70
  5. Step 5: Solve for x
    x = 349,030,666,823.70/528,095.55
  6. Step 6: Final answer
    x = 660,923.33

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Double scale
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Similar ratio
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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.