Home / 945,358.04-1,304,598.16-515,647.40

Finding the Fourth Proportional to 945,358.04, 1,304,598.16 and 515,647.40

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Solution

The fourth proportional to 945,358.04, 1,304,598.16 and 515,647.40 is: 711,595.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,358.04 : 1,304,598.16 = 515,647.40 : x
  2. Step 2: Convert to fraction form
    945,358.04/1,304,598.16 = 515,647.40/x
  3. Step 3: Cross multiply
    945,358.04x = 1,304,598.16 × 515,647.40
  4. Step 4: Simplify right side
    945,358.04x = 672,712,649,248.78
  5. Step 5: Solve for x
    x = 672,712,649,248.78/945,358.04
  6. Step 6: Final answer
    x = 711,595.63

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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.