Home / 639,792,152.55-959,688,228.83-530,740,459.35

Finding the Fourth Proportional to 639,792,152.55, 959,688,228.83 and 530,740,459.35

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Solution

The fourth proportional to 639,792,152.55, 959,688,228.83 and 530,740,459.35 is: 796,110,689.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,792,152.55 : 959,688,228.83 = 530,740,459.35 : x
  2. Step 2: Convert to fraction form
    639,792,152.55/959,688,228.83 = 530,740,459.35/x
  3. Step 3: Cross multiply
    639,792,152.55x = 959,688,228.83 × 530,740,459.35
  4. Step 4: Simplify right side
    639,792,152.55x = 509,345,371,399,368,448
  5. Step 5: Solve for x
    x = 509,345,371,399,368,448/639,792,152.55
  6. Step 6: Final answer
    x = 796,110,689.03

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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.