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Finding the Fourth Proportional to 719,157.54, 992,810.49 and 525,347.65

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Solution

The fourth proportional to 719,157.54, 992,810.49 and 525,347.65 is: 725,252.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,157.54 : 992,810.49 = 525,347.65 : x
  2. Step 2: Convert to fraction form
    719,157.54/992,810.49 = 525,347.65/x
  3. Step 3: Cross multiply
    719,157.54x = 992,810.49 × 525,347.65
  4. Step 4: Simplify right side
    719,157.54x = 521,570,658,728.15
  5. Step 5: Solve for x
    x = 521,570,658,728.15/719,157.54
  6. Step 6: Final answer
    x = 725,252.30

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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.