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Finding the Fourth Proportional to 528,911.78, 793,352.12 and 149,831.78

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Solution

The fourth proportional to 528,911.78, 793,352.12 and 149,831.78 is: 224,743.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,911.78 : 793,352.12 = 149,831.78 : x
  2. Step 2: Convert to fraction form
    528,911.78/793,352.12 = 149,831.78/x
  3. Step 3: Cross multiply
    528,911.78x = 793,352.12 × 149,831.78
  4. Step 4: Simplify right side
    528,911.78x = 118,869,355,590.45
  5. Step 5: Solve for x
    x = 118,869,355,590.45/528,911.78
  6. Step 6: Final answer
    x = 224,743.26

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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.