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Finding the Fourth Proportional to 346,459.10, 478,443.76 and 327,590.06

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Solution

The fourth proportional to 346,459.10, 478,443.76 and 327,590.06 is: 452,386.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,459.10 : 478,443.76 = 327,590.06 : x
  2. Step 2: Convert to fraction form
    346,459.10/478,443.76 = 327,590.06/x
  3. Step 3: Cross multiply
    346,459.10x = 478,443.76 × 327,590.06
  4. Step 4: Simplify right side
    346,459.10x = 156,733,416,833.83
  5. Step 5: Solve for x
    x = 156,733,416,833.83/346,459.10
  6. Step 6: Final answer
    x = 452,386.50

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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.