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Finding the Fourth Proportional to 616,638.40, 924,957.60 and 403,748.80

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Solution

The fourth proportional to 616,638.40, 924,957.60 and 403,748.80 is: 605,623.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,638.40 : 924,957.60 = 403,748.80 : x
  2. Step 2: Convert to fraction form
    616,638.40/924,957.60 = 403,748.80/x
  3. Step 3: Cross multiply
    616,638.40x = 924,957.60 × 403,748.80
  4. Step 4: Simplify right side
    616,638.40x = 373,450,521,050.88
  5. Step 5: Solve for x
    x = 373,450,521,050.88/616,638.40
  6. Step 6: Final answer
    x = 605,623.20

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1.5x scale

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.