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Finding the Fourth Proportional to 529,877.52, 731,220.84 and 291,413.52

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Solution

The fourth proportional to 529,877.52, 731,220.84 and 291,413.52 is: 402,145.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,877.52 : 731,220.84 = 291,413.52 : x
  2. Step 2: Convert to fraction form
    529,877.52/731,220.84 = 291,413.52/x
  3. Step 3: Cross multiply
    529,877.52x = 731,220.84 × 291,413.52
  4. Step 4: Simplify right side
    529,877.52x = 213,087,638,881.76
  5. Step 5: Solve for x
    x = 213,087,638,881.76/529,877.52
  6. Step 6: Final answer
    x = 402,145.08

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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.