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Finding the Fourth Proportional to 346,411.60, 519,617.40 and 276,427.60

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Solution

The fourth proportional to 346,411.60, 519,617.40 and 276,427.60 is: 414,641.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,411.60 : 519,617.40 = 276,427.60 : x
  2. Step 2: Convert to fraction form
    346,411.60/519,617.40 = 276,427.60/x
  3. Step 3: Cross multiply
    346,411.60x = 519,617.40 × 276,427.60
  4. Step 4: Simplify right side
    346,411.60x = 143,636,590,800.24
  5. Step 5: Solve for x
    x = 143,636,590,800.24/346,411.60
  6. Step 6: Final answer
    x = 414,641.40

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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.