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Finding the Fourth Proportional to 318,391.90, 477,587.76 and 93,752.35

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Solution

The fourth proportional to 318,391.90, 477,587.76 and 93,752.35 is: 140,628.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,391.90 : 477,587.76 = 93,752.35 : x
  2. Step 2: Convert to fraction form
    318,391.90/477,587.76 = 93,752.35/x
  3. Step 3: Cross multiply
    318,391.90x = 477,587.76 × 93,752.35
  4. Step 4: Simplify right side
    318,391.90x = 44,774,974,831.24
  5. Step 5: Solve for x
    x = 44,774,974,831.24/318,391.90
  6. Step 6: Final answer
    x = 140,628.50

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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.