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Finding the Fourth Proportional to 566,886.06, 782,302.76 and 312,237.25

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Solution

The fourth proportional to 566,886.06, 782,302.76 and 312,237.25 is: 430,887.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,886.06 : 782,302.76 = 312,237.25 : x
  2. Step 2: Convert to fraction form
    566,886.06/782,302.76 = 312,237.25/x
  3. Step 3: Cross multiply
    566,886.06x = 782,302.76 × 312,237.25
  4. Step 4: Simplify right side
    566,886.06x = 244,264,060,103.76
  5. Step 5: Solve for x
    x = 244,264,060,103.76/566,886.06
  6. Step 6: Final answer
    x = 430,887.40

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Double scale
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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.