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Finding the Fourth Proportional to 1,702,970, 2,554,455 and 692,641.60

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Solution

The fourth proportional to 1,702,970, 2,554,455 and 692,641.60 is: 1,038,962.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,702,970 : 2,554,455 = 692,641.60 : x
  2. Step 2: Convert to fraction form
    1,702,970/2,554,455 = 692,641.60/x
  3. Step 3: Cross multiply
    1,702,970x = 2,554,455 × 692,641.60
  4. Step 4: Simplify right side
    1,702,970x = 1,769,321,798,328
  5. Step 5: Solve for x
    x = 1,769,321,798,328/1,702,970
  6. Step 6: Final answer
    x = 1,038,962.40

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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.