Finding the Fourth Proportional to 352,746,710.24, 486,817,690.68 and 211,623,216.08
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Solution
The fourth proportional to 352,746,710.24, 486,817,690.68 and 211,623,216.08 is: 292,056,374.60
Step by Step Solution
- Step 1: Write the proportion equation
352,746,710.24 : 486,817,690.68 = 211,623,216.08 : x - Step 2: Convert to fraction form
352,746,710.24/486,817,690.68 = 211,623,216.08/x - Step 3: Cross multiply
352,746,710.24x = 486,817,690.68 × 211,623,216.08 - Step 4: Simplify right side
352,746,710.24x = 103,021,925,343,906,144 - Step 5: Solve for x
x = 103,021,925,343,906,144/352,746,710.24 - Step 6: Final answer
x = 292,056,374.60
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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.