Home / 917,970,111.03-1,266,803,043.17-521,514,855.17

Finding the Fourth Proportional to 917,970,111.03, 1,266,803,043.17 and 521,514,855.17

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Solution

The fourth proportional to 917,970,111.03, 1,266,803,043.17 and 521,514,855.17 is: 719,692,937.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,970,111.03 : 1,266,803,043.17 = 521,514,855.17 : x
  2. Step 2: Convert to fraction form
    917,970,111.03/1,266,803,043.17 = 521,514,855.17/x
  3. Step 3: Cross multiply
    917,970,111.03x = 1,266,803,043.17 × 521,514,855.17
  4. Step 4: Simplify right side
    917,970,111.03x = 660,656,605,578,776,192
  5. Step 5: Solve for x
    x = 660,656,605,578,776,192/917,970,111.03
  6. Step 6: Final answer
    x = 719,692,937.32

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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.