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Finding the Fourth Proportional to 438,097.58, 604,459.76 and 256,712.12

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Solution

The fourth proportional to 438,097.58, 604,459.76 and 256,712.12 is: 354,195.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,097.58 : 604,459.76 = 256,712.12 : x
  2. Step 2: Convert to fraction form
    438,097.58/604,459.76 = 256,712.12/x
  3. Step 3: Cross multiply
    438,097.58x = 604,459.76 × 256,712.12
  4. Step 4: Simplify right side
    438,097.58x = 155,172,146,444.29
  5. Step 5: Solve for x
    x = 155,172,146,444.29/438,097.58
  6. Step 6: Final answer
    x = 354,195.40

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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.