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Finding the Fourth Proportional to 529,580.95, 730,988.91 and 338,595.10

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Solution

The fourth proportional to 529,580.95, 730,988.91 and 338,595.10 is: 467,368.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,580.95 : 730,988.91 = 338,595.10 : x
  2. Step 2: Convert to fraction form
    529,580.95/730,988.91 = 338,595.10/x
  3. Step 3: Cross multiply
    529,580.95x = 730,988.91 × 338,595.10
  4. Step 4: Simplify right side
    529,580.95x = 247,509,263,080.34
  5. Step 5: Solve for x
    x = 247,509,263,080.34/529,580.95
  6. Step 6: Final answer
    x = 467,368.14

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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.