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Finding the Fourth Proportional to 710,526.12, 980,525.05 and 404,602.58

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Solution

The fourth proportional to 710,526.12, 980,525.05 and 404,602.58 is: 558,350.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,526.12 : 980,525.05 = 404,602.58 : x
  2. Step 2: Convert to fraction form
    710,526.12/980,525.05 = 404,602.58/x
  3. Step 3: Cross multiply
    710,526.12x = 980,525.05 × 404,602.58
  4. Step 4: Simplify right side
    710,526.12x = 396,722,965,821.18
  5. Step 5: Solve for x
    x = 396,722,965,821.18/710,526.12
  6. Step 6: Final answer
    x = 558,350.99

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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.