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Finding the Fourth Proportional to 554,738.60, 830,001.90 and 368,114.60

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Solution

The fourth proportional to 554,738.60, 830,001.90 and 368,114.60 is: 550,774.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,738.60 : 830,001.90 = 368,114.60 : x
  2. Step 2: Convert to fraction form
    554,738.60/830,001.90 = 368,114.60/x
  3. Step 3: Cross multiply
    554,738.60x = 830,001.90 × 368,114.60
  4. Step 4: Simplify right side
    554,738.60x = 305,535,817,417.74
  5. Step 5: Solve for x
    x = 305,535,817,417.74/554,738.60
  6. Step 6: Final answer
    x = 550,774.40

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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.