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Finding the Fourth Proportional to 347,809.60, 521,714.40 and 223,393.60

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Solution

The fourth proportional to 347,809.60, 521,714.40 and 223,393.60 is: 335,090.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,809.60 : 521,714.40 = 223,393.60 : x
  2. Step 2: Convert to fraction form
    347,809.60/521,714.40 = 223,393.60/x
  3. Step 3: Cross multiply
    347,809.60x = 521,714.40 × 223,393.60
  4. Step 4: Simplify right side
    347,809.60x = 116,547,657,987.84
  5. Step 5: Solve for x
    x = 116,547,657,987.84/347,809.60
  6. Step 6: Final answer
    x = 335,090.40

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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.