Home / 640,616,822.10-960,925,233.15-435,031,823.70

Finding the Fourth Proportional to 640,616,822.10, 960,925,233.15 and 435,031,823.70

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Solution

The fourth proportional to 640,616,822.10, 960,925,233.15 and 435,031,823.70 is: 652,547,735.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,616,822.10 : 960,925,233.15 = 435,031,823.70 : x
  2. Step 2: Convert to fraction form
    640,616,822.10/960,925,233.15 = 435,031,823.70/x
  3. Step 3: Cross multiply
    640,616,822.10x = 960,925,233.15 × 435,031,823.70
  4. Step 4: Simplify right side
    640,616,822.10x = 418,033,056,616,592,192
  5. Step 5: Solve for x
    x = 418,033,056,616,592,192/640,616,822.10
  6. Step 6: Final answer
    x = 652,547,735.55

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Double scale
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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.