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Finding the Fourth Proportional to 406,316.79, 607,004.30 and 262,994.47

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Solution

The fourth proportional to 406,316.79, 607,004.30 and 262,994.47 is: 392,892.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,316.79 : 607,004.30 = 262,994.47 : x
  2. Step 2: Convert to fraction form
    406,316.79/607,004.30 = 262,994.47/x
  3. Step 3: Cross multiply
    406,316.79x = 607,004.30 × 262,994.47
  4. Step 4: Simplify right side
    406,316.79x = 159,638,773,306.20
  5. Step 5: Solve for x
    x = 159,638,773,306.20/406,316.79
  6. Step 6: Final answer
    x = 392,892.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.