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Finding the Fourth Proportional to 724,259.25, 999,477.77 and 406,307.25

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Solution

The fourth proportional to 724,259.25, 999,477.77 and 406,307.25 is: 560,704.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,259.25 : 999,477.77 = 406,307.25 : x
  2. Step 2: Convert to fraction form
    724,259.25/999,477.77 = 406,307.25/x
  3. Step 3: Cross multiply
    724,259.25x = 999,477.77 × 406,307.25
  4. Step 4: Simplify right side
    724,259.25x = 406,095,062,133.30
  5. Step 5: Solve for x
    x = 406,095,062,133.30/724,259.25
  6. Step 6: Final answer
    x = 560,704.01

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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.