Finding the Fourth Proportional to 1,036,644,547.65, 1,554,966,821.48 and 346,462,120.95
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Solution
The fourth proportional to 1,036,644,547.65, 1,554,966,821.48 and 346,462,120.95 is: 519,693,181.43
Step by Step Solution
- Step 1: Write the proportion equation
1,036,644,547.65 : 1,554,966,821.48 = 346,462,120.95 : x - Step 2: Convert to fraction form
1,036,644,547.65/1,554,966,821.48 = 346,462,120.95/x - Step 3: Cross multiply
1,036,644,547.65x = 1,554,966,821.48 × 346,462,120.95 - Step 4: Simplify right side
1,036,644,547.65x = 538,737,102,975,108,480 - Step 5: Solve for x
x = 538,737,102,975,108,480/1,036,644,547.65 - Step 6: Final answer
x = 519,693,181.43
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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.