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Finding the Fourth Proportional to 480,416.90, 662,946.81 and 265,544.15

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Solution

The fourth proportional to 480,416.90, 662,946.81 and 265,544.15 is: 366,435.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,416.90 : 662,946.81 = 265,544.15 : x
  2. Step 2: Convert to fraction form
    480,416.90/662,946.81 = 265,544.15/x
  3. Step 3: Cross multiply
    480,416.90x = 662,946.81 × 265,544.15
  4. Step 4: Simplify right side
    480,416.90x = 176,041,643,841.93
  5. Step 5: Solve for x
    x = 176,041,643,841.93/480,416.90
  6. Step 6: Final answer
    x = 366,435.16

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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.