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Finding the Fourth Proportional to 288,021.60, 432,032.40 and 176,047.20

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Solution

The fourth proportional to 288,021.60, 432,032.40 and 176,047.20 is: 264,070.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,021.60 : 432,032.40 = 176,047.20 : x
  2. Step 2: Convert to fraction form
    288,021.60/432,032.40 = 176,047.20/x
  3. Step 3: Cross multiply
    288,021.60x = 432,032.40 × 176,047.20
  4. Step 4: Simplify right side
    288,021.60x = 76,058,094,329.28
  5. Step 5: Solve for x
    x = 76,058,094,329.28/288,021.60
  6. Step 6: Final answer
    x = 264,070.80

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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.