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Finding the Fourth Proportional to 623,867.80, 935,340.90 and 249,698.20

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Solution

The fourth proportional to 623,867.80, 935,340.90 and 249,698.20 is: 374,362.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,867.80 : 935,340.90 = 249,698.20 : x
  2. Step 2: Convert to fraction form
    623,867.80/935,340.90 = 249,698.20/x
  3. Step 3: Cross multiply
    623,867.80x = 935,340.90 × 249,698.20
  4. Step 4: Simplify right side
    623,867.80x = 233,552,939,116.38
  5. Step 5: Solve for x
    x = 233,552,939,116.38/623,867.80
  6. Step 6: Final answer
    x = 374,362.87

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Double scale
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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.