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Finding the Fourth Proportional to 659,417.56, 910,045.14 and 369,058.28

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Solution

The fourth proportional to 659,417.56, 910,045.14 and 369,058.28 is: 509,327.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,417.56 : 910,045.14 = 369,058.28 : x
  2. Step 2: Convert to fraction form
    659,417.56/910,045.14 = 369,058.28/x
  3. Step 3: Cross multiply
    659,417.56x = 910,045.14 × 369,058.28
  4. Step 4: Simplify right side
    659,417.56x = 335,859,694,090.76
  5. Step 5: Solve for x
    x = 335,859,694,090.76/659,417.56
  6. Step 6: Final answer
    x = 509,327.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.