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Finding the Fourth Proportional to 570,497.50, 856,041.36 and 290,015.02

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Solution

The fourth proportional to 570,497.50, 856,041.36 and 290,015.02 is: 435,172.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,497.50 : 856,041.36 = 290,015.02 : x
  2. Step 2: Convert to fraction form
    570,497.50/856,041.36 = 290,015.02/x
  3. Step 3: Cross multiply
    570,497.50x = 856,041.36 × 290,015.02
  4. Step 4: Simplify right side
    570,497.50x = 248,264,852,141.23
  5. Step 5: Solve for x
    x = 248,264,852,141.23/570,497.50
  6. Step 6: Final answer
    x = 435,172.55

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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.