Home / 710,705,680.62-980,755,417.35-393,177,654.06

Finding the Fourth Proportional to 710,705,680.62, 980,755,417.35 and 393,177,654.06

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Solution

The fourth proportional to 710,705,680.62, 980,755,417.35 and 393,177,654.06 is: 542,574,971.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,705,680.62 : 980,755,417.35 = 393,177,654.06 : x
  2. Step 2: Convert to fraction form
    710,705,680.62/980,755,417.35 = 393,177,654.06/x
  3. Step 3: Cross multiply
    710,705,680.62x = 980,755,417.35 × 393,177,654.06
  4. Step 4: Simplify right side
    710,705,680.62x = 385,611,114,200,309,248
  5. Step 5: Solve for x
    x = 385,611,114,200,309,248/710,705,680.62
  6. Step 6: Final answer
    x = 542,574,971.21

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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.