Home / 645,141,686.80-967,712,530.20-578,628,893.20

Finding the Fourth Proportional to 645,141,686.80, 967,712,530.20 and 578,628,893.20

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Solution

The fourth proportional to 645,141,686.80, 967,712,530.20 and 578,628,893.20 is: 867,943,339.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,141,686.80 : 967,712,530.20 = 578,628,893.20 : x
  2. Step 2: Convert to fraction form
    645,141,686.80/967,712,530.20 = 578,628,893.20/x
  3. Step 3: Cross multiply
    645,141,686.80x = 967,712,530.20 × 578,628,893.20
  4. Step 4: Simplify right side
    645,141,686.80x = 559,946,430,285,397,632
  5. Step 5: Solve for x
    x = 559,946,430,285,397,632/645,141,686.80
  6. Step 6: Final answer
    x = 867,943,339.80

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Double scale
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Similar ratio
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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.