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Finding the Fourth Proportional to 554,990.30, 832,485.45 and 554,990.30

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Solution

The fourth proportional to 554,990.30, 832,485.45 and 554,990.30 is: 832,485.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,990.30 : 832,485.45 = 554,990.30 : x
  2. Step 2: Convert to fraction form
    554,990.30/832,485.45 = 554,990.30/x
  3. Step 3: Cross multiply
    554,990.30x = 832,485.45 × 554,990.30
  4. Step 4: Simplify right side
    554,990.30x = 462,021,349,641.14
  5. Step 5: Solve for x
    x = 462,021,349,641.14/554,990.30
  6. Step 6: Final answer
    x = 832,485.45

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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.