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Finding the Fourth Proportional to 553,866.18, 830,444.34 and 233,931.36

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Solution

The fourth proportional to 553,866.18, 830,444.34 and 233,931.36 is: 350,747.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,866.18 : 830,444.34 = 233,931.36 : x
  2. Step 2: Convert to fraction form
    553,866.18/830,444.34 = 233,931.36/x
  3. Step 3: Cross multiply
    553,866.18x = 830,444.34 × 233,931.36
  4. Step 4: Simplify right side
    553,866.18x = 194,266,973,860.50
  5. Step 5: Solve for x
    x = 194,266,973,860.50/553,866.18
  6. Step 6: Final answer
    x = 350,747.13

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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.