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Finding the Fourth Proportional to 700,503.90, 1,049,200.65 and 607,191.90

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Solution

The fourth proportional to 700,503.90, 1,049,200.65 and 607,191.90 is: 909,439.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,503.90 : 1,049,200.65 = 607,191.90 : x
  2. Step 2: Convert to fraction form
    700,503.90/1,049,200.65 = 607,191.90/x
  3. Step 3: Cross multiply
    700,503.90x = 1,049,200.65 × 607,191.90
  4. Step 4: Simplify right side
    700,503.90x = 637,066,136,154.74
  5. Step 5: Solve for x
    x = 637,066,136,154.74/700,503.90
  6. Step 6: Final answer
    x = 909,439.81

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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.