Home / 926,220,852.70-1,389,331,279.05-380,781,108.70

Finding the Fourth Proportional to 926,220,852.70, 1,389,331,279.05 and 380,781,108.70

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Solution

The fourth proportional to 926,220,852.70, 1,389,331,279.05 and 380,781,108.70 is: 571,171,663.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,220,852.70 : 1,389,331,279.05 = 380,781,108.70 : x
  2. Step 2: Convert to fraction form
    926,220,852.70/1,389,331,279.05 = 380,781,108.70/x
  3. Step 3: Cross multiply
    926,220,852.70x = 1,389,331,279.05 × 380,781,108.70
  4. Step 4: Simplify right side
    926,220,852.70x = 529,031,104,788,248,064
  5. Step 5: Solve for x
    x = 529,031,104,788,248,064/926,220,852.70
  6. Step 6: Final answer
    x = 571,171,663.05

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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.