Finding the Fourth Proportional to 1,270,719.18, 1,905,655.91 and 512,364.78
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Solution
The fourth proportional to 1,270,719.18, 1,905,655.91 and 512,364.78 is: 768,376.67
Step by Step Solution
- Step 1: Write the proportion equation
1,270,719.18 : 1,905,655.91 = 512,364.78 : x - Step 2: Convert to fraction form
1,270,719.18/1,905,655.91 = 512,364.78/x - Step 3: Cross multiply
1,270,719.18x = 1,905,655.91 × 512,364.78 - Step 4: Simplify right side
1,270,719.18x = 976,390,968,521.03 - Step 5: Solve for x
x = 976,390,968,521.03/1,270,719.18 - Step 6: Final answer
x = 768,376.67
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.