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Finding the Fourth Proportional to 604,763.84, 907,154.40 and 210,779.84

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Solution

The fourth proportional to 604,763.84, 907,154.40 and 210,779.84 is: 316,172.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,763.84 : 907,154.40 = 210,779.84 : x
  2. Step 2: Convert to fraction form
    604,763.84/907,154.40 = 210,779.84/x
  3. Step 3: Cross multiply
    604,763.84x = 907,154.40 × 210,779.84
  4. Step 4: Simplify right side
    604,763.84x = 191,209,859,287.30
  5. Step 5: Solve for x
    x = 191,209,859,287.30/604,763.84
  6. Step 6: Final answer
    x = 316,172.77

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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.