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Finding the Fourth Proportional to 514,868.40, 772,302.60 and 357,404.40

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Solution

The fourth proportional to 514,868.40, 772,302.60 and 357,404.40 is: 536,106.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,868.40 : 772,302.60 = 357,404.40 : x
  2. Step 2: Convert to fraction form
    514,868.40/772,302.60 = 357,404.40/x
  3. Step 3: Cross multiply
    514,868.40x = 772,302.60 × 357,404.40
  4. Step 4: Simplify right side
    514,868.40x = 276,024,347,371.44
  5. Step 5: Solve for x
    x = 276,024,347,371.44/514,868.40
  6. Step 6: Final answer
    x = 536,106.60

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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.