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Finding the Fourth Proportional to 406,005.40, 607,841.70 and 248,541.40

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Solution

The fourth proportional to 406,005.40, 607,841.70 and 248,541.40 is: 372,098.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,005.40 : 607,841.70 = 248,541.40 : x
  2. Step 2: Convert to fraction form
    406,005.40/607,841.70 = 248,541.40/x
  3. Step 3: Cross multiply
    406,005.40x = 607,841.70 × 248,541.40
  4. Step 4: Simplify right side
    406,005.40x = 151,073,827,096.38
  5. Step 5: Solve for x
    x = 151,073,827,096.38/406,005.40
  6. Step 6: Final answer
    x = 372,098.07

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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.