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Finding the Fourth Proportional to 770,368.72, 1,062,774.48 and 464,271.16

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Solution

The fourth proportional to 770,368.72, 1,062,774.48 and 464,271.16 is: 640,492.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,368.72 : 1,062,774.48 = 464,271.16 : x
  2. Step 2: Convert to fraction form
    770,368.72/1,062,774.48 = 464,271.16/x
  3. Step 3: Cross multiply
    770,368.72x = 1,062,774.48 × 464,271.16
  4. Step 4: Simplify right side
    770,368.72x = 493,415,540,648.00
  5. Step 5: Solve for x
    x = 493,415,540,648.00/770,368.72
  6. Step 6: Final answer
    x = 640,492.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.