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Finding the Fourth Proportional to 312,055.06, 468,345.16 and 292,372.06

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Solution

The fourth proportional to 312,055.06, 468,345.16 and 292,372.06 is: 438,804.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,055.06 : 468,345.16 = 292,372.06 : x
  2. Step 2: Convert to fraction form
    312,055.06/468,345.16 = 292,372.06/x
  3. Step 3: Cross multiply
    312,055.06x = 468,345.16 × 292,372.06
  4. Step 4: Simplify right side
    312,055.06x = 136,931,039,220.23
  5. Step 5: Solve for x
    x = 136,931,039,220.23/312,055.06
  6. Step 6: Final answer
    x = 438,804.10

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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.