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Finding the Fourth Proportional to 577,985.64, 797,631.66 and 348,541.80

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Solution

The fourth proportional to 577,985.64, 797,631.66 and 348,541.80 is: 480,994.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,985.64 : 797,631.66 = 348,541.80 : x
  2. Step 2: Convert to fraction form
    577,985.64/797,631.66 = 348,541.80/x
  3. Step 3: Cross multiply
    577,985.64x = 797,631.66 × 348,541.80
  4. Step 4: Simplify right side
    577,985.64x = 278,007,974,513.39
  5. Step 5: Solve for x
    x = 278,007,974,513.39/577,985.64
  6. Step 6: Final answer
    x = 480,994.60

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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.