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Finding the Fourth Proportional to 556,287,988.80, 834,431,983.20 and 350,702,990.40

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Solution

The fourth proportional to 556,287,988.80, 834,431,983.20 and 350,702,990.40 is: 526,054,485.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,287,988.80 : 834,431,983.20 = 350,702,990.40 : x
  2. Step 2: Convert to fraction form
    556,287,988.80/834,431,983.20 = 350,702,990.40/x
  3. Step 3: Cross multiply
    556,287,988.80x = 834,431,983.20 × 350,702,990.40
  4. Step 4: Simplify right side
    556,287,988.80x = 292,637,791,793,642,560
  5. Step 5: Solve for x
    x = 292,637,791,793,642,560/556,287,988.80
  6. Step 6: Final answer
    x = 526,054,485.60

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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.