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Finding the Fourth Proportional to 425,402.99, 586,248.59 and 304,334.06

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Solution

The fourth proportional to 425,402.99, 586,248.59 and 304,334.06 is: 419,403.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,402.99 : 586,248.59 = 304,334.06 : x
  2. Step 2: Convert to fraction form
    425,402.99/586,248.59 = 304,334.06/x
  3. Step 3: Cross multiply
    425,402.99x = 586,248.59 × 304,334.06
  4. Step 4: Simplify right side
    425,402.99x = 178,415,412,979.34
  5. Step 5: Solve for x
    x = 178,415,412,979.34/425,402.99
  6. Step 6: Final answer
    x = 419,403.29

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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.