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Finding the Fourth Proportional to 413,335.19, 619,425.45 and 223,386.14

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Solution

The fourth proportional to 413,335.19, 619,425.45 and 223,386.14 is: 334,767.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,335.19 : 619,425.45 = 223,386.14 : x
  2. Step 2: Convert to fraction form
    413,335.19/619,425.45 = 223,386.14/x
  3. Step 3: Cross multiply
    413,335.19x = 619,425.45 × 223,386.14
  4. Step 4: Simplify right side
    413,335.19x = 138,371,057,196.14
  5. Step 5: Solve for x
    x = 138,371,057,196.14/413,335.19
  6. Step 6: Final answer
    x = 334,767.19

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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.