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Finding the Fourth Proportional to 935,577.60, 1,401,753.60 and 435,916.80

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Solution

The fourth proportional to 935,577.60, 1,401,753.60 and 435,916.80 is: 653,123.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,577.60 : 1,401,753.60 = 435,916.80 : x
  2. Step 2: Convert to fraction form
    935,577.60/1,401,753.60 = 435,916.80/x
  3. Step 3: Cross multiply
    935,577.60x = 1,401,753.60 × 435,916.80
  4. Step 4: Simplify right side
    935,577.60x = 611,047,943,700.48
  5. Step 5: Solve for x
    x = 611,047,943,700.48/935,577.60
  6. Step 6: Final answer
    x = 653,123.74

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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.