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Finding the Fourth Proportional to 614,554.40, 921,874.80 and 348,442.40

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Solution

The fourth proportional to 614,554.40, 921,874.80 and 348,442.40 is: 522,688.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,554.40 : 921,874.80 = 348,442.40 : x
  2. Step 2: Convert to fraction form
    614,554.40/921,874.80 = 348,442.40/x
  3. Step 3: Cross multiply
    614,554.40x = 921,874.80 × 348,442.40
  4. Step 4: Simplify right side
    614,554.40x = 321,220,267,811.52
  5. Step 5: Solve for x
    x = 321,220,267,811.52/614,554.40
  6. Step 6: Final answer
    x = 522,688.09

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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.