Home / 923,376.60-1,385,259.30-390,623.40

Finding the Fourth Proportional to 923,376.60, 1,385,259.30 and 390,623.40

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Solution

The fourth proportional to 923,376.60, 1,385,259.30 and 390,623.40 is: 586,017.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,376.60 : 1,385,259.30 = 390,623.40 : x
  2. Step 2: Convert to fraction form
    923,376.60/1,385,259.30 = 390,623.40/x
  3. Step 3: Cross multiply
    923,376.60x = 1,385,259.30 × 390,623.40
  4. Step 4: Simplify right side
    923,376.60x = 541,114,697,647.62
  5. Step 5: Solve for x
    x = 541,114,697,647.62/923,376.60
  6. Step 6: Final answer
    x = 586,017.34

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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.