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Finding the Fourth Proportional to 346,892.44, 478,859.12 and 210,970.04

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Solution

The fourth proportional to 346,892.44, 478,859.12 and 210,970.04 is: 291,228.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,892.44 : 478,859.12 = 210,970.04 : x
  2. Step 2: Convert to fraction form
    346,892.44/478,859.12 = 210,970.04/x
  3. Step 3: Cross multiply
    346,892.44x = 478,859.12 × 210,970.04
  4. Step 4: Simplify right side
    346,892.44x = 101,024,927,437.05
  5. Step 5: Solve for x
    x = 101,024,927,437.05/346,892.44
  6. Step 6: Final answer
    x = 291,228.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.