Finding the Fourth Proportional to 292,159,778,837.70, 438,239,668,256.55 and 292,159,778,837.70
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Solution
The fourth proportional to 292,159,778,837.70, 438,239,668,256.55 and 292,159,778,837.70 is: 438,239,668,256.55
Step by Step Solution
- Step 1: Write the proportion equation
292,159,778,837.70 : 438,239,668,256.55 = 292,159,778,837.70 : x - Step 2: Convert to fraction form
292,159,778,837.70/438,239,668,256.55 = 292,159,778,837.70/x - Step 3: Cross multiply
292,159,778,837.70x = 438,239,668,256.55 × 292,159,778,837.70 - Step 4: Simplify right side
292,159,778,837.70x = 128,036,004,555,740,663,513,088 - Step 5: Solve for x
x = 128,036,004,555,740,663,513,088/292,159,778,837.70 - Step 6: Final answer
x = 438,239,668,256.55
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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.