Home / 712,583,204.20-983,389,028.58-679,931,469.16

Finding the Fourth Proportional to 712,583,204.20, 983,389,028.58 and 679,931,469.16

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Solution

The fourth proportional to 712,583,204.20, 983,389,028.58 and 679,931,469.16 is: 938,328,525.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,583,204.20 : 983,389,028.58 = 679,931,469.16 : x
  2. Step 2: Convert to fraction form
    712,583,204.20/983,389,028.58 = 679,931,469.16/x
  3. Step 3: Cross multiply
    712,583,204.20x = 983,389,028.58 × 679,931,469.16
  4. Step 4: Simplify right side
    712,583,204.20x = 668,637,146,958,224,640
  5. Step 5: Solve for x
    x = 668,637,146,958,224,640/712,583,204.20
  6. Step 6: Final answer
    x = 938,328,525.03

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Half scale
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Double scale
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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.