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Finding the Fourth Proportional to 971,570.30, 1,457,355.45 and 768,616.70

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Solution

The fourth proportional to 971,570.30, 1,457,355.45 and 768,616.70 is: 1,152,925.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,570.30 : 1,457,355.45 = 768,616.70 : x
  2. Step 2: Convert to fraction form
    971,570.30/1,457,355.45 = 768,616.70/x
  3. Step 3: Cross multiply
    971,570.30x = 1,457,355.45 × 768,616.70
  4. Step 4: Simplify right side
    971,570.30x = 1,120,147,736,706.01
  5. Step 5: Solve for x
    x = 1,120,147,736,706.01/971,570.30
  6. Step 6: Final answer
    x = 1,152,925.05

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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.