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Finding the Fourth Proportional to 525,276.30, 787,914.45 and 245,340.30

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Solution

The fourth proportional to 525,276.30, 787,914.45 and 245,340.30 is: 368,010.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,276.30 : 787,914.45 = 245,340.30 : x
  2. Step 2: Convert to fraction form
    525,276.30/787,914.45 = 245,340.30/x
  3. Step 3: Cross multiply
    525,276.30x = 787,914.45 × 245,340.30
  4. Step 4: Simplify right side
    525,276.30x = 193,307,167,537.34
  5. Step 5: Solve for x
    x = 193,307,167,537.34/525,276.30
  6. Step 6: Final answer
    x = 368,010.45

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Double scale
Find fourth proportional to 525,277.30, 787,915.95 and 245,341.30
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.